Ashutosh V. Kotwal

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 1, 2026 A combination of measurements sensitive to anomalous quartic electroweak gauge boson couplings is presented using proton–proton collision data collected by the ATLAS detector at s=13 TeV at the LHC. Contributing analyses include measurements of vector-boso ... Full text Cite

Search for long-lived particles using displaced vertices of oppositely charged leptons in 140fb−1 of pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 1, 2026 A search is presented for long-lived particles decaying into an oppositely charged lepton pair, μ+μ−, e+e−, or e ± μ ∓, that form a vertex within the inner tracking system of the ATLAS det ... Full text Cite

Search for massive, long-lived particles in events with displaced vertices and displaced muons in pp collisions at s=13.6 TeV with the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 1, 2026 A search is presented for massive long-lived particles in events featuring at least one displaced vertex and at least one displaced muon, using proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider from 2022 to 2024 at a ... Full text Cite

Combination of Measurements of CP Properties of Higgs Boson Interactions with Vector Bosons Using Proton-Proton Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · July 2026 A combination of measurements of the CP properties of Higgs boson interactions with electroweak gauge bosons is presented, using 140 fb^{-1} of proton-proton collisions at sqrt[s]=13 TeV recorded by the ATLAS detector. Results from vector boson fusion H→ ... Full text Cite

Study of particle fluence effects on collected charge and depletion voltage of the ATLAS IBL planar pixel sensors

Journal article Journal of Instrumentation · July 1, 2026 After ten years of operation at the LHC, the planar pixel sensors of the innermost barrel layer of the ATLAS Pixel detector have accumulated an average bulk damage fluence in excess of 2×1015 1 MeV-neutrons equivalent/cm2. The macrosc ... Full text Cite

Differential cross-section measurements of coherent production of singly and doubly resonant top-quark in WWbb events with one lepton at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2026 This paper presents differential cross-section measurements of events containing a charged lepton, missing transverse momentum, two b-jets, and two light jets, consistent with the W+W−bb¯ final state. The analysis is based on 140 fb−1 of proton- ... Full text Cite

Search for emerging jets in pp collisions at s=13TeV with the ATLAS experiment

Journal article European Physical Journal C · July 1, 2026 A search is presented for emerging jets using 140fb-1 of proton–proton collision data at s=13TeV, collected by the ATLAS experiment between 2015 and 2018. The search looks for the existence of a dark sector with symmetries similar to those in quantum chrom ... Full text Cite

Measurement of the

Journal article Journal of High Energy Physics · July 1, 2026 The first measurement of the magnitude of the CKM quark mixing matrix element |Vcb| using on-shell W-boson decays is presented. The measurement is made with tt¯ events from pp collision data corresponding to an integrated luminosity of 140 fb Full text Cite

Constraints on effective field theories via quadruple-differential angular decay rates from t-channel single-top-quark production at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2026 Events with t-channel single top quarks are used to probe effective field theory operators in s=13 TeV proton–proton collision data corresponding to 140 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. To extract a maximum amoun ... Full text Cite

Observation of structures in the mass spectrum with the ATLAS detector

Journal article Physical Review D · June 24, 2026 A search for resonant structures in the J Full text Cite

Search for Higgs bosons produced in association with a high-energy photon via vector-boson fusion and decaying to a pair of b-quarks in the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 1, 2026 A search for Standard Model Higgs bosons produced in association with a high-energy photon and decaying to bb¯ is performed using 133 fb−1 of s=13 TeV pp collision data collected with the ATLAS detector at the Large Hadron Collider at CERN. The ... Full text Cite

Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons with 199 fb−1 of data collected at s=13 and 13.6 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 1, 2026 A search for the resonant production of a heavy scalar X decaying into a lighter scalar S and a Higgs boson, through the process X→S(→bb¯)H(→γγ), where the two photons are consistent with the Higgs boson decay, is performed. The search is conducted using i ... Full text Cite

Characterization of nuclear breakup as a function of hard-scattering kinematics using dijets measured by ATLAS in p+Pb collisions

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 1, 2026 This Letter analyzes the sensitivity of event geometry estimators to the initial-state kinematics of hard scattering in proton–lead collisions. This analysis uses dijets as a proxy for the parton–parton scattering configuration, correlating it with event g ... Full text Cite

Search for higgsinos in compressed mass spectra using low-momentum tracks in pp collisions at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2026 This paper presents two searches for the electroweak production of higgsinos with compressed mass spectra using 140 fb−1 of s=13 TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider. Events are required ... Full text Cite

Search for dimuon resonance in the 35 to 75 GeV mass range using 140 fb−1 of 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2026 A model-independent search for low-mass resonances decaying into pairs of oppositely charged muons is presented. The analysis uses proton-proton collision data corresponding to an integrated luminosity of 140 fb−1, recorded by the ATLAS detector ... Full text Cite

Study of Higgs boson pair production in the HH→bb‾γγ final state with 308 fb−1 of data collected at s= 13 TeV and 13.6 TeV by the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · May 1, 2026 A search for Higgs boson pair production in the bb¯γγ final state is performed. The proton–proton collision dataset corresponds to an integrated luminosity of 308 fb−1, consisting of two samples, 140 fb−1 at a centre-of-mass energy of ... Full text Cite

Search for the Higgs boson decay to a Z boson and a photon in pp collisions at s=13 TeV and 13.6 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · May 1, 2026 A search for the Higgs boson decay to a Z boson and a photon in the ℓℓ γ (ℓ=e,μ) final state is performed using pp collisions at s=13.6 TeV recorded with the ATLAS detector at the Large Hadron Collider during 2022–2024, corresponding to an integrated lumin ... Full text Cite

Measurement of the W-boson angular coefficients and transverse momentum in pp collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · May 1, 2026 The angular distributions of Drell–Yan lepton pairs provide sensitive probes of the underlying dynamics of quantum chromodynamics (QCD) effects in vector-boson production. This paper presents for the first time the measurement of the full set of angular co ... Full text Cite

Observation of a cross-section enhancement near the production threshold in TeV pp collisions with the ATLAS detector

Journal article Reports on Progress in Physics · May 1, 2026 Abstract A measurement of ... Full text Cite

Measurement of the Higgs boson production in association with top quarks in multilepton final states in pp collisions at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2026 A measurement of the associated production of a top-quark pair with the Higgs boson (tt¯H) in multilepton final states is presented. The analysis is based on a data sample of proton-proton collisions at s=13 TeV recorded with the ATLAS detector at the CERN ... Full text Cite

Precise measurement of the tt¯ production cross-section and lepton differential distributions in eμ dilepton events from s=13TeVpp collisions with the ATLAS detector

Journal article European Physical Journal C · May 1, 2026 The inclusive top quark pair (tt¯) cross-section σtt¯ has been measured in proton–proton collisions at s=13TeV, using 140fb-1 of data collected by the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge eμ pair and b-tagged ... Full text Cite

Measurement of differential t-channel single top (anti)quark production cross-sections at 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2026 The production of single top quarks and top antiquarks via the t-channel exchange of a virtual W boson is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV at the Large Hadron Collider. The full Run 2 data sample recorded with the A ... Full text Cite

Measurement of the azimuthal anisotropy of charged particles in and collisions with the ATLAS detector

Journal article Physical Review C · April 13, 2026 This paper presents the first measurements of the azimuthal anisotropy coefficients v ... Full text Cite

Measurement of coherent exclusive J/ψ → μ+μ− production in ultraperipheral Pb+Pb collisions at sNN=5.36 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2026 The ATLAS experiment has performed a measurement of coherent exclusive J/ψ → μ+μ− production in ultraperipheral Pb+Pb collisions at sNN=5.36 TeV. The data was recorded at the Large Hadron Collider (LHC) during 2023, and corresponds to ... Full text Cite

Search for signatures of electroweakinos with photons, jets, and large missing transverse momentum in s=13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2026 A search for final states characterised by at least one isolated high transverse-momentum photon, jets and large missing transverse momentum is presented. Such a final state might occur in gauge-mediated supersymmetric models where a pair of binos and higg ... Full text Cite

Measurement of the top-quark mass using decays with a J/ψ meson at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2026 The top-quark mass is measured using top-quark decays producing an isolated lepton and J/ψ meson reconstructed in its μ+μ− decay mode. The data sample was recorded with the ATLAS detector in proton-proton collisions at a centre-of-mas ... Full text Cite

Electroweak diboson production in association with a high-mass dijet system in semileptonic final states from pp collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · April 1, 2026 This paper reports the observation of electroweak diboson (WW/WZ/ZZ) production in association with a high-mass dijet system, in which final states with one boson decaying leptonically and the other boson decaying hadronically are studied. The hadronically ... Full text Cite

Observation of tt¯γγ production at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · March 1, 2026 This paper presents the first observation of top-quark pair production in association with two photons (tt¯γγ). The measurement is performed in the single-lepton decay channel using proton-proton collision data collected by the ATLAS detector at the Large ... Full text Cite

Search for Beyond the Standard Model physics with anomaly detection in multilepton final states in pp collisions at s=13TeV with the ATLAS detector

Journal article European Physical Journal C · March 1, 2026 A model-agnostic search for Beyond the Standard Model physics is presented, targeting final states with at least four light leptons (electrons or muons). The search regions are separated by event topology and unsupervised machine learning is used to identi ... Full text Cite

Erratum: The environmental impact, carbon emissions and sustainability of computing in the ATLAS experiment (The European Physical Journal C, (2025), 85, 12, (1397), 10.1140/epjc/s10052-025-14976-3)

Journal article European Physical Journal C · March 1, 2026 The worldwide distribution of ATLAS computing, based on the amount of CPU provided, in HS23 (see Sect. 4.1 for the precise definition of HS23), on average in 2023–2024. Countries in gray did not contribute significant CPU One correction is noted for the pa ... Full text Cite

Measurements of differential cross-sections of WbWb production in the dilepton channel in pp collisions at $$ \sqrt{s}=13 $$ TeV using the ATLAS detector

Journal article Journal of High Energy Physics · February 13, 2026 Full text Cite

Observation of W+W−γ production in pp collisions at s = 13 TeV with the ATLAS detector and constraints on anomalous quartic gauge-boson couplings

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 1, 2026 This Letter reports the observation of W+W−γ triboson production in 140 fb−1 of data collected by the ATLAS detector from proton–proton collisions at a centre-of-mass energy of s = 13 TeV at the LHC. Events with an opposite ... Full text Cite

Search for heavy neutral leptons in decays of W bosons produced in 13 TeV pp collisions using prompt signatures in the ATLAS detector

Journal article European Physical Journal C · February 1, 2026 The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter–antimatter asymmetry, and dark matter. In this paper, leptonic decays of W bosons from 140 fb-1 of 13 TeV ... Full text Cite

Transforming jet flavour tagging at ATLAS.

Journal article Nature communications · January 2026 Jet flavour tagging enables the identification of jets originating from heavy-flavour quarks in proton-proton collisions at the Large Hadron Collider, playing a critical role in its physics programmes. This paper presents GN2, a transformer-based flavour t ... Full text Cite

Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions with the ATLAS Detector.

Journal article Physical review letters · January 2026 Anisotropic flow and radial flow are two key probes of the expansion dynamics and properties of the quark-gluon plasma (QGP). While anisotropic flow has been extensively studied, radial flow, which governs the system's radial expansion, has received less a ... Full text Cite

Measurement of the top-quark Yukawa coupling from tt¯ production in the lepton+jets final state using pp collisions at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2026 The top-quark Yukawa coupling is extracted from the distribution of the top-quark pair (tt¯) invariant mass in proton-proton collisions using 140 fb−1 of data at s=13 TeV collected in 2015–2018 by the ATLAS experiment at the Large Hadron Collide ... Full text Cite

Erratum to: Precision measurement of the B0 meson lifetime using B0 → J/ ψ K*0 decays with the ATLAS detector (The European Physical Journal C, (2025), 85, 7, (736), 10.1140/epjc/s10052-025-14232-8)

Journal article European Physical Journal C · January 1, 2026 When deriving the B0 meson decay width Γd from the measured effective lifetime τB0 formula (1) for the decay of the B0 and B¯0 mesons to the same final state has been used, which included a nonzero asymmetry parameter A. However, since the two mesons decay ... Full text Cite

Total Cost of Ownership and Evaluation of Google Cloud Resources for the ATLAS Experiment at the LHC

Journal article Computing and Software for Big Science · December 1, 2025 The ATLAS Google Project was established as part of an ongoing evaluation of the use of commercial clouds by the ATLAS Collaboration, in anticipation of the potential future adoption of such resources by WLCG grid sites to fulfil or complement their comput ... Full text Cite

Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector.

Journal article Physical review letters · December 2025 A search for the dimuon decay of the Higgs boson is presented based on pp collision data recorded by ATLAS during Run 3 of the Large Hadron Collider, corresponding to an integrated luminosity of 165 fb^{-1} at sqrt[s]=13.6 TeV. To enhance the sensitivity ... Full text Cite

Measurement of substructure-dependent suppression of large-radius jets with charged particles in Pb+Pb collisions with ATLAS

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 1, 2025 Measurements of jet substructure in Pb+Pb collisions provide key insights into the mechanism of jet quenching in the hot and dense QCD medium created in these collisions.This Letter presents a measurement of the suppression of large-radius jets with a radi ... Full text Cite

Measurements of Higgs boson production via gluon–gluon fusion and vector-boson fusion using H→WW∗→ℓνℓν decays in pp collisions with the ATLAS detector and their effective field theory interpretations

Journal article European Physical Journal C · December 1, 2025 Higgs boson production cross-sections via gluon–gluon fusion and vector-boson fusion in proton–proton collisions are measured in the H→WW∗→ℓνℓν decay channel. The Large Hadron Collider delivered proton–proton collisions at a centre-of-mass energy of 13TeV ... Full text Cite

Search for squarks and gluinos in pp collisions at s=13 TeV and 13.6 TeV in events with τ-leptons, jets and missing transverse momentum using the ATLAS detector

Journal article European Physical Journal C · December 1, 2025 A search for R-parity-conserving supersymmetry in events with large missing transverse momentum, jets and at least one hadronically decaying τ-lepton is presented. Both gluino and squark pair production are considered, with the cascade decay of each gluino ... Full text Cite

Measurement of high-mass tt¯ℓ+ℓ- production and lepton flavour universality-inspired effective field theory interpretations at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · December 1, 2025 Measurements of tt¯ℓ+ℓ- production in the region of high dilepton invariant mass with effective field theory (EFT) interpretations are presented. They are performed using final states with three isolated leptons (electrons or muons) and are based on s=13 T ... Full text Cite

Estimation of backgrounds from jets misidentified as τ-leptons using the Universal Fake Factor method with the ATLAS detector

Journal article European Physical Journal C · December 1, 2025 Processes with τ-leptons in the final state are important for Standard Model measurements and searches for physics beyond the Standard Model. The ATLAS experiment at the Large Hadron Collider observes τ-leptons produced in proton–proton collisions only thr ... Full text Cite

Search for single production of vector-like quarks decaying into W(ℓν)b in pp collisions at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2025 A search for single production of a vector-like quark Q, which could be either a singlet T, with charge 23, or a Y from a (T, B, Y) triplet, with charge −43, is performed using data from proton-proton collisions at a centre-of-mass energy of 13 TeV. The da ... Full text Cite

The environmental impact, carbon emissions and sustainability of computing in the ATLAS experiment

Journal article European Physical Journal C · December 1, 2025 ATLAS, a general-purpose experiment at the Large Hadron Collider (LHC), makes use of a large internationally-distributed computing infrastructure, including over 106 TB of managed data on disk and tape and almost one million simultaneously running CPU core ... Full text Cite

Future Circular Collider Feasibility Study Report: Volume 1 Physics, Experiments, Detectors

Journal article European Physical Journal C · December 1, 2025 Volume 1 of the FCC Feasibility Report presents an overview of the physics case, experimental programme, and detector concepts for the Future Circular Collider (FCC). This volume outlines how FCC would address some of the most profound open questions in pa ... Full text Cite

Erratum to: Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 fb−1 of 13 TeV pp collisions with the ATLAS detector (Journal of High Energy Physics, (2023), 2023, 7, (155), 10.1007/JHEP07(2023)155)

Journal article Journal of High Energy Physics · December 1, 2025 One correction is noted for the paper [1], which does not affect any of the other results reported. The right vertical axis (gaγγ) of figure 8 was not defined consistently with the description in the caption and was incorrectly lower by a factor of 10. ... Full text Cite

Search for resonant leptoquark production via lepton-jet signatures in pp collisions at s=13 TeV and s=13.6 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2025 This paper presents a search for physics beyond the Standard Model targeting a heavy resonance visible in the invariant mass of the lepton-jet system. The analysis focuses on final states with a high-energy lepton and jet, and is optimised for the resonant ... Full text Cite

Measurement of the top-quark pole mass in dileptonic tt¯ + 1-jet events at s=13 TeV with the ATLAS experiment

Journal article Journal of High Energy Physics · December 1, 2025 A measurement of the top-quark pole mass mtpole is presented in tt¯ events with an additional jet, tt¯ + 1-jet, produced in pp collisions at s=13 TeV. The data sample, recorded with the ATLAS experiment during Run 2 of the LHC, corresponds to an integrated ... Full text Cite

Future circular collider feasibility study report: Volume 2 Accelerators, technical infrastructure and safety

Journal article European Physical Journal Special Topics · December 1, 2025 In response to the 2020 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) Feasibility Study was launched as an international collaboration hosted by CERN. This report describes the FCC integrated programme, which cons ... Full text Cite

Correction: Future Circular Collider Feasibility Study Report: Volume 3 Civil Engineering, Implementation and Sustainability (The European Physical Journal Special Topics, (2025), 10.1140/epjs/s11734-025-01958-5)

Journal article European Physical Journal Special Topics · December 1, 2025 The Image Sources and Credits information section was missing from this article and should have read ‘The FCC Project formally acknowledges and credits all organisations and contributors whose data and imagery form part of the basemaps used in this work. T ... Full text Cite

Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in 132 fb − 1 of pp collisions at (Formula presented) = 13 TeV

Journal article Physical Review D · November 24, 2025 This article reports on a search for dijet resonances using 132 fb−1 of pp collision data recorded at (Formula presented) ¼ 13 TeV by the ATLAS detector at the Large Hadron Collider. The search is performed solely on jets reconstructed within th ... Full text Cite

Search for events with one displaced vertex from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in pp collisions at (Formula presented) = 13 TeV

Journal article Physical Review D · November 7, 2025 A search for events with one displaced vertex from long-lived particles using data collected by the ATLAS detector at the Large Hadron Collider is presented, using 140 fb−1 of proton-proton collision data at (Formula presented) ¼ 13 TeV recorded ... Full text Cite

Erratum: Measurement of the total and differential cross-sections of (Formula Presented.) production in pp collisions at (Formula Presented.) = 13 TeV with the ATLAS detector (Journal of High Energy Physics, (2024), 2024, 5, (131), 10.1007/JHEP05(2024)131)

Journal article Journal of High Energy Physics · November 1, 2025 On the original published paper the symbol l was not rendered correctly in following plots: • Figure 4: x-axis names • Figures 5(a)–5(d): region name • Figures 2, 3, 10(a) and 10(b): x-axis and region names The originally published wrong file has been repl ... Full text Cite

A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps

Journal article European Physical Journal C · November 1, 2025 A calibration of the ATLAS flavour-tagging algorithms using a new calibration procedure based on optimal transportation maps is presented. Simultaneous, continuous corrections to the b-jet, c-jet, and light-flavour jet classification probabilities from jet ... Full text Cite

Measurements and interpretations of W±Z production cross-sections in pp collisions at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2025 Measurements of integrated and differential cross-sections for W±Z production in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Collider from 2015 to 2018 at a centre-of-mass energy of s=13 T ... Full text Cite

Search for electroweak production of vector-like leptons in τ-lepton and b-jet final states in pp collisions at s = 13 TeV with the ATLAS detector

Journal article European Physical Journal C · November 1, 2025 A search for pair-production of vector-like leptons is presented, considering their decays into a third-generation Standard Model (SM) quark and a vector leptoquark (U1) as predicted by an ultraviolet-complete extension of the SM, referred to as the ‘4321’ ... Full text Cite

Erratum to: Search for neutral long-lived particles that decay into displaced jets in the ATLAS calorimeter in association with leptons or jets using pp collisions at (Formula presented.) = 13 TeV (Journal of High Energy Physics, (2024), 2024, 11, (36), 10.1007/JHEP11(2024)036)

Journal article Journal of High Energy Physics · November 1, 2025 Corrections to two figures are noted. In the presentation of exclusion limits for the axion-like particle models, the branching ratio for the decay of the associated W and Z bosons into electron or muon final states was not factored out. For the associated ... Full text Cite

Observation of double parton scattering in same-sign W boson pair production in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 1, 2025 This letter reports the measurement of double parton scattering in same-sign W boson pair production with the ATLAS detector. The data set used corresponds to an integrated luminosity of 140 fb−1 of proton–proton collisions at a center-of-mass e ... Full text Cite

Search for Higgs boson exotic decays into Lorentz-boosted light bosons in the four-τ final state at s=13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 1, 2025 A search for exotic decays of the Higgs boson into a pair of low-mass scalars that subsequently decay into τ-leptons, H→aa→τ+τ−τ+τ−, is presented. In models with Yukawa-like couplings, the decay to τ-leptons is f ... Full text Cite

Weakly supervised anomaly detection for resonant new physics in the dijet final state using proton-proton collisions at (Formula presented.) with the ATLAS detector

Journal article Physical Review D · October 22, 2025 An anomaly detection search for narrow-width resonances beyond the Standard Model that decay into a pair of jets is presented. The search is based on 139 fb−1 of proton-proton collisions at (Formula presented.) recorded during 2015–2018 with the ... Full text Cite

Search for decays of the Higgs boson into scalar particles decaying into four or six b quarks using pp collisions at (Formula presented) = 13 TeV with the ATLAS detector

Journal article Physical Review D · October 17, 2025 A search for exotic decays of the Higgs boson H into new scalar or pseudoscalar particles that subsequently decay into b-quarks is presented. The search considers ZH production with several decay scenarios for the Higgs boson; first to a pair of identical ... Full text Cite

Block segmentation in feature space for realtime object detection in high granularity images.

Journal article Scientific reports · October 2025 Computer vision has applications in object detection, image recognition and classification, and object tracking. One of the challenges of computer vision is the presence of useful information at multiple distance scales. Filtering techniques may sacrifice ... Full text Cite

A measurement of the high-mass ττ¯ production cross-section at s=13 TeV with the ATLAS detector and constraints on new particles and couplings

Journal article Journal of High Energy Physics · October 1, 2025 The production cross-section of high-mass τ-lepton pairs is measured as a function of the dilepton visible invariant mass, using 140 fb−1 of s=13 TeV proton-proton collision data recorded with the ATLAS detector at the Large Hadron Collider. The ... Full text Cite

Probing the Higgs boson CP properties in vector-boson fusion production in the H → τ+τ− channel with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2025 The CP properties of the Higgs boson are studied in the vector-boson fusion production mode. The analysis exploits the decay mode of the Higgs boson into two τ-leptons using 140 fb−1 of proton-proton collision data at s=13 TeV collected by the A ... Full text Cite

Search for the production of a Higgs boson in association with a single top quark in pp collisions at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2025 A search for the production of a Higgs boson in association with a single top quark, tH, is presented. The analysis uses proton-proton collision data corresponding to an integrated luminosity of 140 fb−1 at a centre-of-mass energy of 13 TeV, col ... Full text Cite

Search for Higgs boson decays into a Z boson and a light hadronically decaying resonance in pp collisions at √s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · September 1, 2025 A search for decays of the Higgs boson into a Z boson and a light resonance, with a mass of 0.5–3.5 GeV, is performed using the full 140 fb−1 dataset of 13 TeV proton–proton collisions recorded by the ATLAS detector during LHC Run 2. Leptonic de ... Full text Cite

Measurement of jet track functions in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · September 1, 2025 Measurements of jet substructure are key to probing the energy frontier at colliders, and many of them use track-based observables which take advantage of the angular precision of tracking detectors. Theoretical calculations of track-based observables requ ... Full text Cite

Evidence for Longitudinally Polarized W Bosons in the Electroweak Production of Same-Sign W Boson Pairs in Association with Two Jets in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · September 2025 This Letter reports the first evidence of electroweak production of same-sign W boson pairs where at least one of the W bosons is longitudinally polarized and the most stringent constraint to date for the production of two longitudinally polarized same-sig ... Full text Cite

Search for emerging jets in pp collisions at √s = 13.6 TeV with the ATLAS experiment

Journal article Reports on Progress in Physics · September 1, 2025 A search for emerging jets is presented using 51.8 fb−1 of proton–proton collision data at √s = 13.6 TeV, collected by the ATLAS experiment during 2022 and 2023. The search explores a hypothetical dark sector featuring ‘dark quarks’ t ... Full text Cite

A search for dark matter produced in association with a dark Higgs boson decaying into a Higgs boson pair in 3b or 4b final states using pp collisions at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · September 1, 2025 A search is performed for dark matter particles produced in association with a resonant pair of Higgs bosons using 140 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the Large Hadron Colli ... Full text Cite

A precise measurement of the jet energy scale derived from single-particle measurements and in situ techniques in proton–proton collisions at s= 13 TeV with the ATLAS detector

Journal article European Physical Journal C · September 1, 2025 The jet energy calibration and its uncertainties are derived from measurements of the calorimeter response to single particles in both data and Monte Carlo simulation using proton–proton collisions at s=13 TeV collected with the ATLAS detector during Run 2 ... Full text Cite

Search for emerging jets in<i>pp</i>collisions ats=13.6TeV with the ATLAS experiment.

Journal article Reports on progress in physics. Physical Society (Great Britain) · September 2025 A search for emerging jets is presented using 51.8 fb-1of proton-proton collision data ats=13.6TeV, collected by the ATLAS experiment during 2022 and 2023. The search explores a hypothetical dark sector featuring 'dark quarks' that are charged u ... Full text Cite

Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at (Formula presented.) TeV with the ATLAS detector

Journal article Physical Review C · August 27, 2025 A measurement is presented of elliptic (v2) and triangular (v3) azimuthal anisotropy coefficients for charged particles produced in Pb+Pb collisions at (Formula presented.) TeV using a dataset corresponding to an integrated luminosity ... Full text Cite

Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 1, 2025 The mass of the top quark is measured using top-quark-top-antiquark pair events with high transverse momentum top quarks. The dataset, collected with the ATLAS detector in proton–proton collisions at s=13 TeV delivered by the Large Hadron Collider, corresp ... Full text Cite

Measurements of the production cross-sections of a Higgs boson in association with a vector boson and decaying into WW* with the ATLAS detector at s = 13 TeV

Journal article Journal of High Energy Physics · August 1, 2025 Measurements of the total and differential Higgs boson production cross-sections, via WH and ZH associated production using H → WW* → ℓνℓν and H → WW* → ℓνjj decays, are presented. The analysis uses proton-proton events delivered by t ... Full text Cite

Search for a new pseudoscalar decaying into a pair of bottom and antibottom quarks in top-associated production in s=13 TeV proton–proton collisions with the ATLAS detector

Journal article European Physical Journal C · August 1, 2025 A search for a pseudoscalar a produced in association with a top-quark pair, or in association with a single top quark plus a W boson, with the pseudoscalar decaying into b-quarks (a→bb¯), is performed using the full Run 2 data sample using a dileptonic de ... Full text Cite

Measurements of W+W− production cross-sections in pp collisions at s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2025 Measurements of W+W− → e±νμ∓ν production cross-sections are presented, providing a test of the predictions of perturbative quantum chromodynamics and the electroweak theory. The measurements are based on data fro ... Full text Cite

Searches for direct slepton production in the compressed-mass corridor in s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2025 This paper presents searches for the direct pair production of charged light-flavour sleptons, each decaying into a stable neutralino and an associated Standard Model lepton. The analyses focus on the challenging “corridor” region, where the mass differenc ... Full text Cite

Erratum: Software and computing for Run 3 of the ATLAS experiment at the LHC (The European Physical Journal C, (2025), 85, 3, (234), 10.1140/epjc/s10052-024-13701-w)

Journal article European Physical Journal C · August 1, 2025 In this article, the following collaboration members were missing: John Apostolakis at CERN, Geneva, Switzerland Imran Latif at Physics Department, Brookhaven National Laboratory, Upton NY, USA Christian Lepore at Physics Department, Brookhaven National La ... Full text Cite

Search for new physics in final states with semivisible jets or anomalous signatures using the ATLAS detector

Journal article Physical Review D · July 25, 2025 A search is presented for hadronic signatures of beyond the Standard Model (BSM) physics, with an emphasis on signatures of a strongly coupled hidden dark sector accessed via resonant production of a Z' mediator. The ATLAS experiment dataset col ... Full text Cite

Search for displaced leptons in √s=13 TeV and 13.6 TeV pp collisions with the ATLAS detector

Journal article Physical Review D · July 17, 2025 A search for leptons displaced from the primary vertex is performed with the ATLAS detector at the Large Hadron Collider. The search includes the full proton-proton collision dataset collected during Run 2 at √s = 13 TeV and a partial dataset collected dur ... Full text Cite

Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in pp collisions ffiffi at √s = 13 TeV with the ATLAS detector

Journal article Physical Review D · July 8, 2025 A search for cascade decays of charged sleptons and sneutrinos using final states characterized by three leptons (electrons or muons) and missing transverse momentum is presented. The analysis is based on a dataset with 140 fb−1 of proton-proton ... Full text Cite

Observation of VVZ production at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 1, 2025 A search for the production of three massive vector bosons, VVZ(V=W,Z), in proton–proton collisions at s=13 TeV is performed using data with an integrated luminosity of 140 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. Events ... Full text Cite

Measurement of W±-boson differential cross-sections in proton–proton collisions with low pile-up data at s=5.02 TeV and 13TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2025 High precision single-differential W±-boson production cross-sections as a function of electron or muon transverse momentum pT or their pseudorapity η, as well as double-differential cross-sections as functions of these variables, are measured in proton–pr ... Full text Cite

Precision measurement of the B0 meson lifetime using B0→J/ψK∗0 decays with the ATLAS detector

Journal article European Physical Journal C · July 1, 2025 A measurement of the B0 meson lifetime using B0→J/ψK∗0 decays in data from 13 TeV proton–proton collisions with an integrated luminosity of 140fb-1 recorded by the ATLAS detector at the LHC is presented. The measured effective lifetime is (Formula presente ... Full text Cite

Cross-section measurements for the production of a W-boson in association with high-transverse-momentum jets in pp collisions at s = 13 TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2025 A set of measurements for the production of a W-boson in association with high-transverse-momentum jets is presented using 140 fb-1 of proton–proton collision data at a centre-of-mass energy of s=13 TeV collected by the ATLAS detector at the LHC. The measu ... Full text Cite

Measurement of double-differential charged-current Drell-Yan cross-sections at high transverse masses in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2025 This paper presents a first measurement of the cross-section for the charged-current Drell-Yan process pp → W± → ℓ±ν above the resonance region, where ℓ is an electron or muon. The measurement is performed for transverse masses, mTW, ... Full text Cite

Energy scale and resolution for anti-kt jets with radius parameters R=0.2 and 0.6 measured in proton-proton collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2025 Jets with different radius parameters R are an important tool for probing quantum chromodynamics processes at different angular scales. Jets with small R=0.2 are instrumental in measurements of the substructure of large-R jets resulting from collimated had ... Full text Cite

Differential cross-section measurements of D± and Ds± meson production in proton-proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2025 The production of D± and Ds± charmed mesons is measured using the D±/Ds±→ ϕ(μμ)π± decay channel with 137 fb−1 of s = 13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Colli ... Full text Cite

Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb−1 of pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2025 This paper presents a search for massive, charged, long-lived particles with the ATLAS detector at the Large Hadron Collider using an integrated luminosity of 140 fb−1 of proton-proton collisions at s = 13 TeV. These particles are expected to mo ... Full text Cite

Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2025 A search is performed for long-lived heavy neutral leptons (HNLs), produced through the decay of a W boson along with a muon or electron. Two channels are explored: a leptonic channel, in which the HNL decays into two leptons and a neutrino, and a semi-lep ... Full text Cite

Charged-hadron and identified-hadron ( ) yield measurements in photonuclear and collisions at with ATLAS

Journal article Physical Review C · June 17, 2025 This paper presents the measurement of charged-hadron and identified-hadron ( K ... Full text Cite

Search for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 1, 2025 A search is conducted for a new scalar boson S, with a mass distinct from that of the Higgs boson, decaying promptly into four leptons (ℓ=e, μ) via an intermediate state containing two on-shell, promptly decaying new spin-1 bosons Zd: S→Zd< ... Full text Cite

Improved reconstruction of highly boosted τ-lepton pairs in the ττ→(μνμντ)(hadrons+ντ) decay channels with the ATLAS detector

Journal article European Physical Journal C · June 1, 2025 This paper presents a new τ-lepton reconstruction and identification procedure at the ATLAS detector at the Large Hadron Collider, which leads to significantly improved performance in the case of physics processes where a highly boosted pair of τ-leptons i ... Full text Cite

Erratum to: Measurement of t-channel production of single top quarks and antiquarks in pp collisions at 13 TeV using the full ATLAS Run 2 data sample (Journal of High Energy Physics, (2024), 2024, 5, (305), 10.1007/JHEP05(2024)305)

Journal article Journal of High Energy Physics · June 1, 2025 Full text Cite

The performance of missing transverse momentum reconstruction and its significance with the ATLAS detector using 140 fb-1 of s=13 TeV pp collisions

Journal article European Physical Journal C · June 1, 2025 This paper presents the reconstruction of missing transverse momentum (pTmiss) in proton–proton collisions, at a center-of-mass energy of 13 TeV. This is a challenging task involving many detector inputs, combining fully calibrated electrons, muons, photon ... Full text Cite

Measurement of off-shell Higgs boson production in the H∗ → ZZ → 4ℓ decay channel using a neural simulation-based inference technique in 13 TeV pp collisions with the ATLAS detector

Journal article Reports on Progress in Physics · May 1, 2025 A measurement of off-shell Higgs boson production in the H∗ → ZZ → 4ℓ decay channel is presented. The measurement uses 140 fb−1 of proton–proton collisions at √s = 13 TeV collected by the ATLAS detector at the Large Hadron Collider an ... Full text Cite

An implementation of neural simulation-based inference for parameter estimation in ATLAS.

Journal article Reports on progress in physics. Physical Society (Great Britain) · May 2025 Neural simulation-based inference (NSBI) is a powerful class of machine-learning-based methods for statistical inference that naturally handles high-dimensional parameter estimation without the need to bin data into low-dimensional summary histograms. Such ... Full text Cite

Reconstruction and identification of pairs of collimated τ-leptons decaying hadronically using s=13 TeV pp collision data with the ATLAS detector

Journal article European Physical Journal C · May 1, 2025 This paper describes an algorithm for reconstructing and identifying a highly collimated hadronically decaying τ-lepton pair with low transverse momentum. When two τ-leptons are highly collimated, their visible decay products might overlap, degrading the r ... Full text Cite

Search for tt¯H/A→tt¯tt¯ production in proton–proton collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · May 1, 2025 A search is presented for a heavy scalar (H) or pseudo-scalar (A) predicted by the two-Higgs-doublet models, where the H/A is produced in association with a top-quark pair (tt¯H/A), and with the H/A decaying into a tt¯ pair. The full LHC Run 2 proton–proto ... Full text Cite

Search for vector-like leptons coupling to first- and second-generation Standard Model leptons in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2025 A search for pair production of vector-like leptons coupling to first- and second-generation Standard Model leptons is presented. The search is based on a dataset of proton-proton collisions at s = 13 TeV recorded with the ATLAS detector during Run 2 of th ... Full text Cite

Test of lepton flavour universality in W-boson decays into electrons and τ-leptons using pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2025 A measurement of the ratio of the branching fractions, Rτ/e = B(W → τν)/B(W → eν), is performed using a sample of W bosons originating from top-quark decays to final states containing τ-leptons or electrons. This measurement uses pp collisions a ... Full text Cite

Erratum to: Search for (Formula Presented.) production in the multilepton final state in proton–proton collisions at (Formula Presented.) = 13 TeV with the ATLAS detector (Journal of High Energy Physics, (2023), 2023, 7, (203), 10.1007/JHEP07(2023)203)

Journal article Journal of High Energy Physics · May 1, 2025 Correction to one figure and the corresponding numbers in the text are noted for the paper. A wrong cross-section was used for the theory prediction of t¯tA(→ t¯t), which was estimated to differ by around 1% with respect to the one of t¯tH(→ t¯t). It was f ... Full text Cite

ATLAS searches for additional scalars and exotic Higgs boson decays with the LHC Run 2 dataset

Journal article Physics Reports · April 22, 2025 This report reviews the published results of searches for possible additional scalar particles and exotic decays of the Higgs boson performed by the ATLAS Collaboration using up to 140 fb−1 of 13 TeV proton–proton collision data collected during ... Full text Cite

Electroweak, QCD and flavour physics studies with ATLAS data from Run 2 of the LHC

Journal article Physics Reports · April 22, 2025 A summary of precision measurements sensitive to electroweak, QCD and quark-flavour effects performed by the ATLAS Collaboration at the Large Hadron Collider is reported. The measurements are predominantly performed on proton–proton (pp) collision data rec ... Full text Cite

Climbing to the Top of the ATLAS 13 TeV data

Journal article Physics Reports · April 22, 2025 The large amount of data recorded with the ATLAS detector at the Large Hadron Collider, corresponding to 140 fb−1 of pp collisions at a centre-of-mass energy of s=13TeV, has brought our knowledge of the top quark to a higher level. The measureme ... Full text Cite

The quest to discover supersymmetry at the ATLAS experiment

Journal article Physics Reports · April 22, 2025 The search for supersymmetry with the ATLAS experiment at the CERN Large Hadron Collider intensified after the discovery of the Higgs boson in 2012. The search programme expanded in both breadth and depth, profiting from the increased integrated luminosity ... Full text Cite

Characterising the Higgs boson with ATLAS data from the LHC Run-2

Journal article Physics Reports · April 22, 2025 The Higgs boson was discovered by the ATLAS and CMS Collaborations in 2012 using data from Run 1 of the Large Hadron Collider (2010−2012). In Run 2 (2015−2018), about 140 fb−1 of proton–proton collisions at a centre-of-mass energy of 13 TeV were ... Full text Cite

Exploration at the high-energy frontier: ATLAS Run 2 searches investigating the exotic jungle beyond the Standard Model

Journal article Physics Reports · April 22, 2025 This report presents a comprehensive collection of searches for new physics performed by the ATLAS Collaboration during the Run 2 period of data taking at the Large Hadron Collider, from 2015 to 2018, corresponding to about 140 fb−1 of s=13TeV p ... Full text Cite

Observation of tt[over ¯] Production in Pb+Pb Collisions at sqrt[s_{NN}]=5.02 TeV with the ATLAS Detector.

Journal article Physical review letters · April 2025 Top-quark pair production is observed in lead-lead (Pb+Pb) collisions at sqrt[s_{NN}]=5.02 TeV at the Large Hadron Collider with the ATLAS detector. The data sample was recorded in 2015 and 2018, amounting to an integrated luminosity of 1.9 nb^{-1}. Even ... Full text Cite

Search for the jet-induced diffusion wake in the quark-gluon plasma via measurements of jet-track correlations in photon-jet events in (Formula presented) collisions at (Formula presented) with the ATLAS detector

Journal article Physical Review C · April 1, 2025 This paper presents a measurement of jet-track correlations in photon-jet events, using 1.72 (Formula presented) of (Formula presented) data at (Formula presented) recorded with the ATLAS detector at the LHC. Events with energetic photon-jet pairs are sele ... Full text Cite

Search for charged Higgs bosons produced in top-quark decays or in association with top quarks and decaying via (Formula presented) in 13 TeV (Formula presented) collisions with the ATLAS detector

Journal article Physical Review D · April 1, 2025 Charged Higgs bosons produced either in top-quark decays or in association with a top quark, subsequently decaying via (Formula presented), are searched for in (Formula presented) of proton-proton collision data at (Formula presented) recorded with the ATL ... Full text Cite

Measurement of the Lund jet plane in hadronic decays of top quarks and W bosons with the ATLAS detector

Journal article European Physical Journal C · April 1, 2025 The Lund jet plane (LJP) is measured for the first time in tt¯ events, using 140 fb-1 of s=13 TeV pp collision data collected with the ATLAS detector at the LHC. The LJP is a two-dimensional observable of the sub-structure of hadronic jets that acts as a p ... Full text Cite

Measurements of WH and ZH production with Higgs boson decays into bottom quarks and direct constraints on the charm Yukawa coupling in 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2025 A study of the Higgs boson decaying into bottom quarks (H → bb¯) and charm quarks (H → cc¯) is performed, in the associated production channel of the Higgs boson with a W or Z boson, using 140 fb−1 of proton-proton collision data at s = 13 TeV c ... Full text Cite

Search for light neutral particles decaying promptly into collimated pairs of electrons or muons in pp collisions at s = 13 TeV with the ATLAS detector

Journal article European Physical Journal C · March 1, 2025 A search for a dark photon, a new light neutral particle, which decays promptly into collimated pairs of electrons or muons is presented. The search targets dark photons resulting from the exotic decay of the Standard Model Higgs boson, assuming its produc ... Full text Cite

Search for Dark Matter Produced in Association with a Dark Higgs Boson in the bb[over ¯] Final State Using pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · March 2025 A search is performed for dark matter particles produced in association with a resonantly produced pair of b-quarks with 30 Full text Cite

Measurement of photonuclear jet production in ultraperipheral (Formula presented) collisions at (Formula presented) with the ATLAS detector

Journal article Physical Review D · March 1, 2025 In ultrarelativistic heavy ion collisions at the LHC, each nucleus acts a sources of high-energy real photons that can scatter off the opposing nucleus in ultraperipheral photonuclear ((Formula presented)) collisions. Hard scattering processes initiated by ... Full text Cite

Differential cross-section measurements of Higgs boson production in the H → τ+τ− decay channel in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · March 1, 2025 Differential measurements of Higgs boson production in the τ-lepton-pair decay channel are presented in the gluon fusion, vector-boson fusion (VBF), VH and tt¯H associated production modes, with particular focus on the VBF production mode. The data used to ... Full text Cite

Configuration, Performance, and Commissioning of the ATLAS b-jet Triggers for the 2022 and 2023 LHC data-taking periods

Journal article Journal of Instrumentation · March 1, 2025 In 2022 and 2023, the Large Hadron Collider produced approximately two billion hadronic interactions each second from bunches of protons that collide at a rate of 40 MHz. The ATLAS trigger system is used to reduce this rate to a few kHz for recording. Sele ... Full text Cite

Software and computing for Run 3 of the ATLAS experiment at the LHC

Journal article European Physical Journal C · March 1, 2025 The ATLAS experiment has developed extensive software and distributed computing systems for Run 3 of the LHC. These systems are described in detail, including software infrastructure and workflows, distributed data and workload management, database infrast ... Full text Cite

Search for Higgs boson decays into a pair of pseudoscalar particles in the γγτhadτhad final state using pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · March 1, 2025 A search for exotic decays of the 125 GeV Higgs boson into a pair of new spin-0 particles, H → aa, where one decays into a photon pair and the other into a τ-lepton pair, is presented. Hadronic decays of the τ-leptons are considered and reconstructed using ... Full text Cite

Constraint on the total width of the Higgs boson from Higgs boson and four-top-quark measurements in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 1, 2025 This Letter presents a constraint on the total width of the Higgs boson (ΓH) using a combined measurement of on-shell Higgs boson production and the production of four top quarks, which involves contributions from off-shell Higgs boson-mediated ... Full text Cite

“Unification” of BSM searches and SM measurements: the case of lepton+ and mW

Journal article Journal of High Energy Physics · February 1, 2025 We develop the idea that the unprecedented precision in Standard Model (SM) measurements, with further improvement at the HL-LHC, enables new searches for physics Beyond the Standard Model (BSM). As an illustration, we demonstrate that the measured kinemat ... Full text Cite

Search for Magnetic Monopole Pair Production in Ultraperipheral Pb+Pb Collisions at sqrt[s_{NN}]=5.36 TeV with the ATLAS Detector at the LHC.

Journal article Physical review letters · February 2025 This Letter presents a search for highly ionizing magnetic monopoles in 262 μb^{-1} of ultraperipheral Pb+Pb collision data at sqrt[s_{NN}]=5.36 TeV collected by the ATLAS detector at the LHC. A new methodology that exploits the properties of clusters of ... Full text Cite

Measurement of the associated production of a top-antitop-quark pair and a Higgs boson decaying into a bb¯ pair in pp collisions at √s=13 TeV using the ATLAS detector at the LHC

Journal article European Physical Journal C · February 1, 2025 This paper reports the measurement of Higgs boson production in association with a tt¯ pair in the H→bb¯ decay channel. The analysis uses 140 fb-1 of 13 TeV proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider. The fi ... Full text Cite

Search for triple Higgs boson production in the 6�� final state using �� collisions at √�� =13 TeV with the ATLAS detector

Journal article Physical Review D · February 1, 2025 A search for the production of three Higgs bosons ((Formula presented)) in the (Formula presented) final state is presented. The search uses (Formula presented) of proton-proton collision data at (Formula presented) collected with the ATLAS detector at the ... Full text Cite

Search for a light charged Higgs boson in t→H±b decays, with H±→cs, in pp collisions at s=13TeV with the ATLAS detector

Journal article European Physical Journal C · February 1, 2025 A search for a light charged Higgs boson produced in decays of the top quark, t→H±b with H±→cs, is presented. This search targets the production of top-quark pairs tt¯→WbH±b, with W→ℓν (ℓ=e,μ), resulting in a lepton-plus-jets final state characterised by a ... Full text Cite

Expected tracking performance of the ATLAS Inner Tracker at the High-Luminosity LHC

Journal article Journal of Instrumentation · February 1, 2025 The high-luminosity phase of LHC operations (HL-LHC), will feature a large increase in simultaneous proton-proton interactions per bunch crossing up to 200, compared with a typical leveling target of 64 in Run 3. Such an increase will create a very challen ... Full text Cite

Search for same-charge top-quark pair production in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2025 A search for the production of top-quark pairs with the same electric charge (tt or tt¯) is presented. The analysis uses proton-proton collision data at s = 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated ... Full text Cite

Search for the associated production of charm quarks and a Higgs boson decaying into a photon pair with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2025 A search for the production of a Higgs boson and one or more charm quarks, in which the Higgs boson decays into a photon pair, is presented. This search uses proton-proton collision data with a centre-of-mass energy of s = 13 TeV and an integrated luminosi ... Full text Cite

Search for single-production of vector-like quarks decaying into Wb in the fully hadronic final state in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2025 A search for T and Y vector-like quarks produced in proton-proton collisions at a centre-of-mass energy of 13 TeV and decaying into Wb in the fully hadronic final state is presented. The search uses 139 fb−1 of data collected by the ATLAS detect ... Full text Cite

Search for a heavy charged Higgs boson decaying into a W boson and a Higgs boson in final states with leptons and b-jets in s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2025 This article presents a search for a heavy charged Higgs boson produced in association with a top quark and a bottom quark, and decaying into a W boson and a 125 GeV Higgs boson h. The search is performed in final states with one charged lepton, missing tr ... Full text Cite

Search for supersymmetry in final states with missing transverse momentum and charm-tagged jets using 139 fb−1 of proton-proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2025 The paper presents a search for supersymmetric particles produced in proton-proton collisions at s = 13 TeV and decaying into final states with missing transverse momentum and jets originating from charm quarks. The data were taken with the ATLAS detector ... Full text Cite

Combination of searches for singly and doubly charged Higgs bosons produced via vector-boson fusion in proton–proton collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 1, 2025 A combination of searches for singly and doubly charged Higgs bosons, H± and H±±, produced via vector-boson fusion is performed using 140 fb−1 of proton–proton collisions at a centre-of-mass energy of 13 TeV, collected with ... Full text Cite

Measurement of top-quark pair production in association with charm quarks in proton–proton collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 1, 2025 Inclusive cross-sections for top-quark pair production in association with charm quarks are measured with proton–proton collision data at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 140 fb−1, collected with the ... Full text Cite

Model for the curvature response of the CDF II drift chamber

Journal article Physical Review Research · January 1, 2025 The CDF II experiment at the Fermilab Tevatron used a drift chamber to measure the momenta of charged particles. We present a model for the response of the drift chamber to the curvature of a charged particle's trajectory. Constraints on the model paramete ... Full text Cite

Combination of searches for singly produced vectorlike top quarks in (Formula presented) collisions at (Formula presented) with the ATLAS detector

Journal article Physical Review D · January 1, 2025 A combination of searches for the single production of vectorlike top quarks ((Formula presented)) is presented. These analyses are based on proton-proton collisions at (Formula presented) recorded in 2015-2018 with the ATLAS detector at the Large Hadron C ... Full text Cite

Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2025 Many extensions of the Standard Model, including those with dark matter particles, propose new mediator particles that decay into hadrons. This paper presents a search for such low mass narrow resonances decaying into hadrons using 140 fb−1 of p ... Full text Cite

Measurement of tt¯ production in association with additional b-jets in the eμ final state in proton–proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2025 This paper presents measurements of top-antitop quark pair (tt¯) production in association with additional b-jets. The analysis utilises 140 fb−1 of proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider at a ... Full text Cite

Search for diphoton resonances in the 66 to 110 GeV mass range using pp collisions at (Formula presented.) TeV with the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2025 A search is performed for light, spin-0 bosons decaying into two photons in the 66 to 110 GeV mass range, using 140 fb−1 of proton-proton collisions at s = 13 TeV produced by the Large Hadron Collider and collected by the ATLAS detector. Multiva ... Full text Cite

Future Circular Collider Feasibility Study Report: Volume 3 Civil Engineering, Implementation and Sustainability

Journal article European Physical Journal Special Topics · January 1, 2025 Volume 3 of the FCC Feasibility Report presents studies related to civil engineering, the development of a project implementation scenario, and environmental and sustainability aspects. The report details the iterative improvements made to the civil engine ... Full text Cite

Precision calibration of calorimeter signals in the ATLAS experiment using an uncertainty-aware neural network

Journal article Scipost Physics · January 1, 2025 The ATLAS experiment at the Large Hadron Collider explores the use of modern neural networks for a multi-dimensional calibration of its calorimeter signal defined by clusters of topologically connected cells (topo-clusters). The Bayesian neural network (BN ... Full text Cite

Software Performance of the ATLAS Track Reconstruction for LHC Run 3

Journal article Computing and Software for Big Science · December 1, 2024 Charged particle reconstruction in the presence of many simultaneous proton–proton (pp) collisions in the LHC is a challenging task for the ATLAS experiment’s reconstruction software due to the combinatorial complexity. This paper describes the major chang ... Full text Cite

Deep Generative Models for Fast Photon Shower Simulation in ATLAS

Journal article Computing and Software for Big Science · December 1, 2024 The need for large-scale production of highly accurate simulated event samples for the extensive physics programme of the ATLAS experiment at the Large Hadron Collider motivates the development of new simulation techniques. Building on the recent success o ... Full text Cite

Measurements of Lund subjet multiplicities in 13 TeV proton-proton collisions with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 1, 2024 This Letter presents a differential cross-section measurement of Lund subjet multiplicities, suitable for testing current and future parton shower Monte Carlo algorithms. This measurement is made in dijet events in 140 fb−1 of s=13 TeV proton–pr ... Full text Cite

Disentangling Sources of Momentum Fluctuations in Xe+Xe and Pb+Pb Collisions with the ATLAS Detector.

Journal article Physical review letters · December 2024 High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions fro ... Full text Cite

Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton-proton collisions at (Formula Presented) with the ATLAS detector

Journal article Physical Review D · December 1, 2024 A search for heavy right-handed Majorana neutrinos is performed with the ATLAS detector at the CERN Large Hadron Collider, using the (Formula Presented) of proton-proton collision data at (Formula Presented) collected during Run 2. This search targets (For ... Full text Cite

Simultaneous Unbinned Differential Cross-Section Measurement of Twenty-Four Z+jets Kinematic Observables with the ATLAS Detector.

Journal article Physical review letters · December 2024 Z boson events at the Large Hadron Collider can be selected with high purity and are sensitive to a diverse range of QCD phenomena. As a result, these events are often used to probe the nature of the strong force, improve Monte Carlo event generators, and ... Full text Cite

Search for supersymmetry using vector boson fusion signatures and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2024 This paper presents a search for supersymmetric particles in models with highly compressed mass spectra, in events consistent with being produced through vector boson fusion. The search uses 140 fb−1 of proton-proton collision data at s = 13 TeV ... Full text Cite

Search for a light CP-odd Higgs boson decaying into a pair of τ-leptons in proton-proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2024 This paper reports a search for a light CP-odd scalar resonance with a mass of 20 GeV to 90 GeV in 13 TeV proton-proton collision data with an integrated luminosity of 140 fb−1 collected with the ATLAS detector at the Large Hadron Collider. The ... Full text Cite

Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution

Journal article Journal of High Energy Physics · December 1, 2024 During the 2015–2018 data-taking period, the Large Hadron Collider delivered proton-proton bunch crossings at a centre-of-mass energy of 13 TeV to the ATLAS experiment at a rate of roughly 30 MHz, where each bunch crossing contained an average of 34 indepe ... Full text Cite

Underlying-event studies with strange hadrons in pp collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · December 1, 2024 Properties of the underlying-event in pp interactions are investigated primarily via the strange hadrons KS0, Λ and Λ¯, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at s=13 TeV. The hadrons are reconstructed via th ... Full text Cite

Operation and performance of the ATLAS tile calorimeter in LHC Run 2

Journal article European Physical Journal C · December 1, 2024 The ATLAS tile calorimeter (TileCal) is the hadronic sampling calorimeter covering the central region of the ATLAS detector at the Large Hadron Collider (LHC). This paper gives an overview of the calorimeter’s operation and performance during the years 201 ... Full text Cite

Search for pair production of boosted Higgs bosons via vector-boson fusion in the bb¯bb¯ final state using pp collisions at s=13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 1, 2024 A search for Higgs boson pair production via vector-boson fusion is performed in the Lorentz-boosted regime, where a Higgs boson candidate is reconstructed as a single large-radius jet, using 140 fb−1 of proton–proton collision data at s=13 TeV ... Full text Cite

Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton–proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2024 A search for the resonant production of a heavy scalar X decaying into a Higgs boson and a new lighter scalar S, through the process X → S(→bb¯)H(→γγ), where the two photons are consistent with the Higgs boson decay, is performed. The search is conducted u ... Full text Cite

Search for neutral long-lived particles that decay into displaced jets in the ATLAS calorimeter in association with leptons or jets using pp collisions at s = 13 TeV

Journal article Journal of High Energy Physics · November 1, 2024 A search for neutral long-lived particles (LLPs) decaying in the ATLAS hadronic calorimeter using 140 fb−1 of proton-proton collisions at s = 13 TeV delivered by the LHC is presented. The analysis is composed of three channels. The first targets ... Full text Cite

Interpretations of the ATLAS measurements of Higgs boson production and decay rates and differential cross-sections in pp collisions at s = 13 TeV

Journal article Journal of High Energy Physics · November 1, 2024 Measurements of the Higgs boson production times decay rates and differential cross-sections have recently been performed by the ATLAS experiment in several decay channels using up to 139 fb−1 of proton-proton collision data at s = 13 TeV record ... Full text Cite

Search for Formula Presented-parity violating supersymmetric decays of the top squark to a Formula Presented-jet and a lepton in Formula Presented Formula Presented collisions with the ATLAS detector

Journal article Physical Review D · November 1, 2024 A search is presented for direct pair production of the stop, the supersymmetric partner of the top quark, in a decay through an Formula Presented-parity violating coupling to a charged lepton and a Formula Presented-quark. The dataset corresponds to an in ... Full text Cite

Observation of tt¯ production in the lepton+jets and dilepton channels in p+Pb collisions at sNN = 8.16 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2024 This paper reports the observation of top-quark pair production in proton-lead collisions in the ATLAS experiment at the Large Hadron Collider. The measurement is performed using 165 nb−1 of p+Pb data collected at sNN = 8.16 TeV in 20 ... Full text Cite

Jet radius dependence of dijet momentum balance and suppression in Pb+Pb collisions at 5.02 TeV with the ATLAS detector

Journal article Physical Review C · November 1, 2024 This paper describes a measurement of the jet radius dependence of the dijet momentum balance between leading back-to-back jets in Formula Presented of Formula Presented collisions collected in 2018 and Formula Presented of Formula Presented collisions col ... Full text Cite

Search for new particles in events with a hadronically decaying W or Z boson and large missing transverse momentum at s = 13 TeV using the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2024 A search is presented for new particles produced in proton-proton collisions at a centre-of-mass energy of 13 TeV that result in final states comprising a massive vector (W or Z) boson that decays hadronically and large missing transverse momentum. The dat ... Full text Cite

Combination and summary of ATLAS dark matter searches interpreted in a 2HDM with a pseudo-scalar mediator using 139 fb^-1 of s=13 TeV pp collision data.

Journal article Science bulletin · October 2024 Results from a wide range of searches targeting different experimental signatures with and without missing transverse momentum (ETmiss) are used to constrain a Two-Higgs-Doublet Model (2HDM) with an additional pseudo-scalar mediating ... Full text Cite

Precise test of lepton flavour universality in W-boson decays into muons and electrons in pp collisions at s=13TeV with the ATLAS detector

Journal article European Physical Journal C · October 1, 2024 The ratio of branching ratios of the W boson to muons and electrons, RWμ/e=B(W→μν)/B(W→eν), has been measured using 140fb-1 of pp collision data at s=13 TeV collected with the ATLAS detector at the LHC, probing the universa ... Full text Cite

Determination of the Relative Sign of the Higgs Boson Couplings to W and Z Bosons Using WH Production via Vector-Boson Fusion with the ATLAS Detector.

Journal article Physical review letters · October 2024 The associated production of Higgs and W bosons via vector-boson fusion is highly sensitive to the relative sign of the Higgs boson couplings to W and Z bosons. In this Letter, two searches for this process are presented, using 140 fb^{-1} of proton-proto ... Full text Cite

Sensor response and radiation damage effects for 3D pixels in the ATLAS IBL Detector

Journal article Journal of Instrumentation · October 1, 2024 Pixel sensors in 3D technology equip the outer ends of the staves of the Insertable B Layer (IBL), the innermost layer of the ATLAS Pixel Detector, which was installed before the start of LHC Run 2 in 2015. 3D pixel sensors are expected to exhibit more tol ... Full text Cite

Search for a resonance decaying into a scalar particle and a Higgs boson in final states with leptons and two photons in proton-proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2024 A search for a hypothetical heavy scalar particle, X, decaying into a singlet scalar particle, S, and a Standard Model Higgs boson, H, using 140 fb−1 of proton-proton collision data at the centre-of-mass energy of 13 TeV recorded with the ATLAS ... Full text Cite

Search for the Exclusive W Boson Hadronic Decays W^{±}→π^{±}γ, W^{±}→K^{±}γ and W^{±}→ρ^{±}γ with the ATLAS Detector.

Journal article Physical review letters · October 2024 A search for the exclusive hadronic decays W^{±}→π^{±}γ, W^{±}→K^{±}γ, and W^{±}→ρ^{±}γ is performed using up to 140 fb^{-1} of proton-proton collisions recorded with the ATLAS detector at a center-of-mass energy of sqrt[s]=13 TeV. If observed, these rar ... Full text Cite

Search for Light Long-Lived Particles in pp Collisions at sqrt[s]=13 TeV Using Displaced Vertices in the ATLAS Inner Detector.

Journal article Physical review letters · October 2024 A search for long-lived particles (LLPs) using 140 fb^{-1} of pp collision data with sqrt[s]=13 TeV recorded by the ATLAS experiment at the LHC is presented. The search targets LLPs with masses between 5 and 55 GeV that decay hadronically in the ATLAS in ... Full text Cite

Constraints on simplified dark matter models involving an s-channel mediator with the ATLAS detector in pp collisions at s=13 TeV

Journal article European Physical Journal C · October 1, 2024 This paper reports a summary of searches for a fermionic dark matter candidate in the context of theoretical models characterised by a mediator particle exchange in the s-channel. The data sample considered consists of pp collisions delivered by the Large ... Full text Cite

Fiducial and differential cross-section measurements of electroweak Wγjj production in pp collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · October 1, 2024 The observation of the electroweak production of a W boson and a photon in association with two jets, using pp collision data at the Large Hadron Collider at a centre of mass energy of s=13 TeV, is reported. The data were recorded by the ATLAS experiment f ... Full text Cite

Precise measurements of W- and Z-boson transverse momentum spectra with the ATLAS detector using pp collisions at s=5.02 TeV and 13 TeV

Journal article European Physical Journal C · October 1, 2024 This paper describes measurements of the transverse momentum spectra of W and Z bosons produced in proton–proton collisions at centre-of-mass energies of s=5.02 TeV and s=13 TeV with the ATLAS experiment at the Large Hadron Collider. Measurements are perfo ... Full text Cite

Measurements of inclusive and differential cross-sections of tt¯γ production in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2024 Inclusive and differential cross-sections are measured at particle level for the associated production of a top quark pair and a photon (tt¯γ). The analysis is performed using an integrated luminosity of 140 fb−1 of proton-proton collisions at a ... Full text Cite

Measurement of single top-quark production in association with a Formula Presented boson in Formula Presented collisions at Formula Presented with the ATLAS detector

Journal article Physical Review D · October 1, 2024 The inclusive cross section for the production of a single top quark in association with a Formula Presented boson is measured using Formula Presented of proton-proton collision data collected with the ATLAS detector at Formula Presented. Events containing ... Full text Cite

Measurements of jet cross-section ratios in 13 TeV proton-proton collisions with ATLAS

Journal article Physical Review D · October 1, 2024 Measurements of jet cross-section ratios between inclusive bins of jet multiplicity are performed in Formula Presented of proton-proton collisions with Formula Presented center-of-mass energy, recorded with the ATLAS detector at CERN’s Large Hadron Collide ... Full text Cite

Search for a new Z′ gauge boson via the pp →W± (*) →z′μ±ν →μ∓μ μ±ν process in pp collisions at vs =13 TeV with the ATLAS detector

Journal article Physical Review D · October 1, 2024 A search for a new Z′ gauge boson predicted by Lµ-Lτ models, based on charged-current Drell-Yan production, pp→W±(∗)→Z′μ±ν→μ±μ μ±ν, is presented. The data sample used corresponds to an integrated luminosity of 140 fb-1 of proton-proto ... Full text Cite

Search for heavy resonances in final states with four leptons and missing transverse momentum or jets in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2024 A search for a new heavy boson produced via gluon-fusion in the four-lepton channel with missing transverse momentum or jets is performed. The search uses proton-proton collision data equivalent to an integrated luminosity of 139 fb−1 at a centr ... Full text Cite

Search for heavy Majorana neutrinos in e±e± and e±μ± final states via WW scattering in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · September 1, 2024 A search for heavy Majorana neutrinos in scattering of same-sign W boson pairs in proton–proton collisions at s=13 TeV at the LHC is reported. The dataset used corresponds to an integrated luminosity of 140 fb−1, collected with the ATLAS detecto ... Full text Cite

Search for pair-produced higgsinos decaying via Higgs or Z bosons to final states containing a pair of photons and a pair of b-jets with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · September 1, 2024 A search is presented for the pair production of higgsinos χ˜ in gauge-mediated supersymmetry models, where the lightest neutralinos χ˜10 decay into a light gravitino G˜ in association with either a Higgs h or a Z boson. The search i ... Full text Cite

Simultaneous energy and mass calibration of large-radius jets with the ATLAS detector using a deep neural network

Journal article Machine Learning Science and Technology · September 1, 2024 The energy and mass measurements of jets are crucial tasks for the Large Hadron Collider experiments. This paper presents a new calibration method to simultaneously calibrate these quantities for large-radius jets measured with the ATLAS detector using a d ... Full text Cite

Combination of Searches for Higgs Boson Pair Production in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · September 2024 This Letter presents results from a combination of searches for Higgs boson pair production using 126-140 fb^{-1} of proton-proton collision data at sqrt[s]=13 TeV recorded with the ATLAS detector. At 95% confidence level (CL), the upper limit on the pro ... Full text Cite

Studies of the Energy Dependence of Diboson Polarization Fractions and the Radiation-Amplitude-Zero Effect in WZ Production with the ATLAS Detector.

Journal article Physical review letters · September 2024 This Letter presents the first study of the energy dependence of diboson polarization fractions in WZ→ℓνℓ^{'}ℓ^{'}(ℓ,ℓ^{'}=e,μ) production. The dataset used corresponds to an integrated luminosity of 140 fb^{-1} of proton-proton collisions at a center-of- ... Full text Cite

Observation of quantum entanglement with top quarks at the ATLAS detector.

Journal article Nature · September 2024 Entanglement is a key feature of quantum mechanics1-3, with applications in fields such as metrology, cryptography, quantum information and quantum computation4-8. It has been observed in a wide variety of systems and length scales, r ... Full text Cite

Measurements of the production cross-section for a Z boson in association with b- or c-jets in proton–proton collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · September 1, 2024 This paper presents a measurement of the production cross-section of a Z boson in association with b- or c-jets, in proton–proton collisions at s=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated lumino ... Full text Cite

Search for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13 TeV pp collisions with the ATLAS detector

Journal article Physical Review D · September 1, 2024 A search is presented for the pair production of heavy vectorlike quarks (VLQs) that each decay into a W boson and a light quark. This study focuses on events where one W boson decays into leptons and the other into hadrons. The search analyzed 140 fb ... Full text Cite

Search for decays of the Higgs boson into a pair of pseudoscalar particles decaying into Formula Presented using Formula Presented collisions at Formula Presented with the ATLAS detector

Journal article Physical Review D · September 1, 2024 This paper presents a search for exotic decays of the Higgs boson into a pair of new pseudoscalar particles, Formula Presented, where one pseudoscalar decays into a Formula Presented-quark pair and the other decays into a Formula Presented-lepton pair, in ... Full text Cite

Search for dark mesons decaying to top and bottom quarks in proton-proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · September 1, 2024 A search for dark mesons originating from strongly-coupled, SU(2) dark flavor symmetry conserving models and decaying gaugephobically to pure Standard Model final states containing top and bottom quarks is presented. The search targets fully hadronic final ... Full text Cite

Searches for exclusive Higgs boson decays into D⁎γ and Z boson decays into D0γ and Ks 0γ in pp collisions at s=13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 1, 2024 Searches for exclusive decays of the Higgs boson into D⁎γ and of the Z boson into D0γ and Ks0γ can probe flavour-violating Higgs boson and Z boson couplings to light quarks. Searches for these decays are perform ... Full text Cite

Measurement of ZZ production cross-sections in the four-lepton final state in pp collisions at s=13.6TeV with the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 1, 2024 This paper reports cross-section measurements of ZZ production in pp collisions at s=13.6TeV at the Large Hadron Collider. The data were collected by the ATLAS detector in 2022, and correspond to an integrated luminosity of 29 fb−1. Events in th ... Full text Cite

A new purpose for the W-boson mass measurement: Searching for New Physics in lepton+MET

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 1, 2024 We show that the mW measurement is a direct probe of New Physics (NP) contributing to ℓ+MET, independently from indirect tests via the electroweak fit. Such NP modifies the kinematic distributions used to extract mW, necessitating a s ... Full text Cite

Measurement of the VH,H → ττ process with the ATLAS detector at 13 TeV

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 1, 2024 A measurement of the Standard Model Higgs boson produced in association with a W or Z boson and decaying into a pair of τ-leptons is presented. This search is based on proton-proton collision data collected at s=13 TeV by the ATLAS experiment at the LHC co ... Full text Cite

Search for the nonresonant production of Higgs boson pairs via gluon fusion and vector-boson fusion in the Formula Presented final state in proton-proton collisions at Formula Presented with the ATLAS detector

Journal article Physical Review D · August 1, 2024 A search for the nonresonant production of Higgs boson pairs in the Formula Presented channel is performed using Formula Presented of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Coll ... Full text Cite

Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at Formula Presented with the ATLAS detector

Journal article Physical Review D · August 1, 2024 A search is performed for localized excesses in the low-mass dijet invariant mass distribution, targeting a hypothetical new particle decaying into two jets and produced in association with either a high transverse momentum photon or a jet. The search uses ... Full text Cite

Search for leptoquark pair production decaying into te-t¯e+ or tμ-t¯μ+ in multi-lepton final states in pp collisions at s=13TeV with the ATLAS detector

Journal article European Physical Journal C · August 1, 2024 A search for leptoquark pair production decaying into te-t¯e+ or tμ-t¯μ+ in final states with multiple leptons is presented. The search is based on a dataset of pp collisions at s=13TeV recorded with the ATLAS de ... Full text Cite

Search for non-resonant Higgs boson pair production in final states with leptons, taus, and photons in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2024 A search is presented for non-resonant Higgs boson pair production, targeting the bbZZ, 4V (V = W or Z), VVττ, 4τ, γγVV and γγττ decay channels. Events are categorised based on the multiplicity of light charged leptons (electrons or muons), hadronically de ... Full text Cite

Combination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at s= 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2024 A combination of searches for Higgs boson decays into a visible photon and a massless dark photon (H → γγd) is presented using 139 fb−1 of proton-proton collision data at a centre-of-mass energy of s = 13 TeV recorded by the ATLAS det ... Full text Cite

Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions

Journal article Journal of High Energy Physics · August 1, 2024 Measurements of inclusive, differential cross-sections for the production of events with missing transverse momentum in association with jets in proton-proton collisions at s = 13 TeV are presented. The measurements are made with the ATLAS detector using a ... Full text Cite

Accuracy versus precision in boosted top tagging with the ATLAS detector

Journal article Journal of Instrumentation · August 1, 2024 The identification of top quark decays where the top quark has a large momentum transverse to the beam axis, known as top tagging, is a crucial component in many measurements of Standard Model processes and searches for beyond the Standard Model physics at ... Full text Cite

Calibration of a soft secondary vertex tagger using proton-proton collisions at Formula Presented with the ATLAS detector

Journal article Physical Review D · August 1, 2024 Several processes studied by the ATLAS experiment at the Large Hadron Collider produce low-momentum Formula Presented-flavored hadrons in the final state. This paper describes the calibration of a dedicated tagging algorithm that identifies Formula Present ... Full text Cite

Measurement of differential cross-sections in tt¯ and tt¯+jets production in the lepton+jets final state in pp collisions at s = 13 TeV using 140 fb−1 of ATLAS data

Journal article Journal of High Energy Physics · August 1, 2024 Differential cross-sections for top-quark pair production, inclusively and in association with jets, are measured in pp collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC using an integrated luminosity of 140 fb−1 ... Full text Cite

Search for heavy neutral Higgs bosons decaying into a top quark pair in 140 fb−1 of proton-proton collision data at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2024 A search for heavy pseudo-scalar (A) and scalar (H) Higgs bosons decaying into a top-quark pair (tt¯) has been performed with 140 fb−1 of proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a centre-of- ... Full text Cite

Measurement of the Z boson invisible width at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 1, 2024 A measurement of the invisible width of the Z boson using events with jets and missing transverse momentum is presented using 37 fb−1 of 13 TeV proton–proton data collected by the ATLAS detector in 2015 and 2016. The ratio of Z→inv to Z→ℓℓ event ... Full text Cite

Combination of searches for pair-produced leptoquarks at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 1, 2024 A statistical combination of various searches for pair-produced leptoquarks is presented, using the full LHC Run 2 (2015–2018) data set of 139 fb−1 collected with the ATLAS detector from proton–proton collisions at a centre-of-mass energy of s=1 ... Full text Cite

Search for pair-production of vector-like quarks in lepton+jets final states containing at least one b-tagged jet using the Run 2 data from the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 1, 2024 A search is presented for the pair-production of heavy vector-like quarks in the lepton+jets final state using 140 fb−1 of proton–proton collisions at s=13 TeV collected with the ATLAS detector. The search is optimised for vector-like top-quarks ... Full text Cite

Measurement of vector boson production cross sections and their ratios using pp collisions at s=13.6 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 1, 2024 Fiducial and total W± and Z boson cross sections, their ratios and the ratio of top-antitop-quark pair and W-boson fiducial cross sections are measured in proton–proton collisions at a centre-of-mass energy of s=13.6 TeV, corresponding to an int ... Full text Cite

Measurement of 𝑡-channel single-top-quark production in 𝑝𝑝 collisions at √𝑠 = 5.02 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 1, 2024 The observation of the electroweak production of single-top-quarks is made using 255 pb−1 of proton-proton collision data recorded at s=5.02 TeV with the ATLAS detector at the Large Hadron Collider. An event selection is used to identify single- ... Full text Cite

Search for short- and long-lived axion-like particles in H→aa→4γ decays with the ATLAS experiment at the LHC

Journal article European Physical Journal C · July 1, 2024 Presented is the search for anomalous Higgs boson decays into two axion-like particles (ALPs) using the full Run 2 data set of 140fb-1 of proton-proton collisions at a centre-of-mass energy of 13TeV recorded by the ATLAS experiment. The ALPs are ... Full text Cite

Inclusive and differential cross-section measurements of tt¯Z production in pp collisions at s = 13 TeV with the ATLAS detector, including EFT and spin-correlation interpretations

Journal article Journal of High Energy Physics · July 1, 2024 Measurements of both the inclusive and differential production cross sections of a top-quark-top-antiquark pair in association with a Z boson (tt¯Z) are presented. Final states with two, three or four isolated leptons (electrons or muons) are targeted. The ... Full text Cite

Statistical Combination of ATLAS Run 2 Searches for Charginos and Neutralinos at the LHC.

Journal article Physical review letters · July 2024 Statistical combinations of searches for charginos and neutralinos using various decay channels are performed using 139 fb^{-1} of pp collision data at sqrt[s]=13 TeV with the ATLAS detector at the Large Hadron Collider. Searches targeting pure-wino char ... Full text Cite

Search for flavour-changing neutral-current couplings between the top quark and the Higgs boson in multi-lepton final states in 13 TeV pp collisions with the ATLAS detector

Journal article European Physical Journal C · July 1, 2024 A search is presented for flavour-changing neutral-current interactions involving the top quark, the Higgs boson and an up-type quark (q=u,c) with the ATLAS detector at the Large Hadron Collider. The analysis considers leptonic decays of the top quark alon ... Full text Cite

Observation of electroweak production of W+W− in association with jets in proton-proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2024 A measurement of the production of W bosons with opposite electric charges in association with two jets is presented based on 140 fb−1 of data collected by the ATLAS detector in proton-proton collisions at s = 13 TeV. The analysis is sensitive t ... Full text Cite

A search for top-squark pair production, in final states containing a top quark, a charm quark and missing transverse momentum, using the 139 fb−1 of pp collision data collected by the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2024 This paper presents a search for top-squark pair production in final states with a top quark, a charm quark and missing transverse momentum. The data were collected with the ATLAS detector during LHC Run 2 and correspond to an integrated luminosity of 139 ... Full text Cite

Search for charged-lepton-flavor violating 𝜇⁢𝜏⁢𝑞⁢𝑡 interactions in top-quark production and decay in 𝑝⁢𝑝 collisions at √𝑠=13 TeV with the ATLAS detector at the LHC

Journal article Physical Review D · July 1, 2024 A search for charged-lepton-flavor violating Formula Presented (Formula Presented, Formula Presented) interactions is presented, considering both top-quark production and decay. The data analyzed correspond to Formula Presented of proton-proton collisions ... Full text Cite

Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from pp collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2024 A search is reported for long-lived dark photons with masses between 0.1 GeV and 15 GeV, from exotic decays of Higgs bosons produced via vector-boson-fusion. Events that contain displaced collimated Standard Model fermions reconstructed in the calorimeter ... Full text Cite

Measurement of jet substructure in boosted t(t)over-bar events with the ATLAS detector using 140 fb^-1 of 13 TeV pp collisions

Journal article PHYSICAL REVIEW D · June 21, 2024 Full text Link to item Cite

Combination of Searches for Resonant Higgs Boson Pair Production Using pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · June 2024 A combination of searches for a new resonance decaying into a Higgs boson pair is presented, using up to 139 fb^{-1} of pp collision data at sqrt[s]=13 TeV recorded with the ATLAS detector at the LHC. The combination includes searches performed in three ... Full text Cite

Search for high-mass resonances in final states with a τ-lepton and missing transverse momentum with the ATLAS detector

Journal article Physical Review D · June 1, 2024 A search for high-mass resonances decaying into a Formula Presented-lepton and a neutrino using proton-proton collisions at a center-of-mass energy of Formula Presented is presented. The full run 2 data sample corresponding to an integrated luminosity of F ... Full text Cite

Search for pair production of higgsinos in events with two Higgs bosons and missing transverse momentum in Formula Presented Formula Presented collisions at the ATLAS experiment

Journal article Physical Review D · June 1, 2024 This paper presents a search for pair production of higgsinos, the supersymmetric partners of the Higgs bosons, in scenarios with gauge-mediated supersymmetry breaking. Each higgsino is assumed to decay into a Higgs boson and a nearly massless gravitino. T ... Full text Cite

Search for singly produced vectorlike top partners in multilepton final states with Formula Presented of Formula Presented collision data at Formula Presented with the ATLAS detector

Journal article Physical Review D · June 1, 2024 A search for the single production of a vectorlike top partner (Formula Presented) with mass greater than 1 TeV decaying into a Formula Presented boson and a top quark is presented, using the full Run 2 dataset corresponding to Formula Presented of Formula ... Full text Cite

Beam-induced backgrounds measured in the ATLAS detector during local gas injection into the LHC beam vacuum

Journal article Journal of Instrumentation · June 1, 2024 Inelastic beam-gas collisions at the Large Hadron Collider (LHC), within a few hundred metres of the ATLAS experiment, are known to give the dominant contribution to beam backgrounds. These are monitored by ATLAS with a dedicated Beam Conditions Monitor (B ... Full text Cite

Combination of Measurements of the Top Quark Mass from Data Collected by the ATLAS and CMS Experiments at sqrt[s]=7 and 8 TeV.

Journal article Physical review letters · June 2024 A combination of fifteen top quark mass measurements performed by the ATLAS and CMS experiments at the LHC is presented. The datasets used correspond to an integrated luminosity of up to 5 and 20 fb^{-1} of proton-proton collisions at center-of-mass energ ... Full text Cite

Measurement of jet substructure in boosted Formula Presented events with the ATLAS detector using Formula Presented of 13 TeV Formula Presented collisions

Journal article Physical Review D · June 1, 2024 Measurements of the substructure of top-quark jets are presented, using Formula Presented of 13 TeV Formula Presented collision data recorded with the ATLAS detector at the LHC. Top-quark jets reconstructed with the anti-Formula Presented algorithm with a ... Full text Cite

The ATLAS trigger system for LHC Run 3 and trigger performance in 2022

Journal article Journal of Instrumentation · June 1, 2024 The ATLAS trigger system is a crucial component of the ATLAS experiment at the LHC. It is responsible for selecting events in line with the ATLAS physics programme. This paper presents an overview of the changes to the trigger and data acquisition system d ... Full text Cite

Measurements of electroweak W±Z boson pair production in association with two jets in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2024 Measurements of integrated and differential cross-sections for electroweak W±Z production in association with two jets (W±Zjj) in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Col ... Full text Cite

A low-latency graph computer to identify metastable particles at the Large Hadron Collider for real-time analysis of potential dark matter signatures.

Journal article Scientific reports · May 2024 Image recognition is a pervasive task in many information-processing environments. We present a solution to a difficult pattern recognition problem that lies at the heart of experimental particle physics. Future experiments with very high-intensity beams w ... Full text Cite

Azimuthal Angle Correlations of Muons Produced via Heavy-Flavor Decays in 5.02 TeV Pb+Pb and pp Collisions with the ATLAS Detector.

Journal article Physical review letters · May 2024 Angular correlations between heavy quarks provide a unique probe of the quark-gluon plasma created in ultrarelativistic heavy-ion collisions. Results are presented of a measurement of the azimuthal angle correlations between muons originating from semilept ... Full text Cite

Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · May 2024 Higgsinos with masses near the electroweak scale can solve the hierarchy problem and provide a dark matter candidate, while detecting them at the LHC remains challenging if their mass splitting is O(1 GeV). This Letter presents a novel search for nearly m ... Full text Cite

The ATLAS experiment at the CERN Large Hadron Collider: a description of the detector configuration for Run 3

Journal article Journal of Instrumentation · May 1, 2024 The ATLAS detector is installed in its experimental cavern at Point 1 of the CERN Large Hadron Collider. During Run 2 of the LHC, a luminosity of ℒ = 2 × 1034 cm-2 s-1 was routinely achieved at the start of fills, twice the ... Full text Cite

Performance of the ATLAS forward proton Time-of-Flight detector in Run 2

Journal article Journal of Instrumentation · May 1, 2024 We present performance studies of the Time-of-Flight (ToF) subdetector of the ATLAS Forward Proton (AFP) detector at the LHC. Efficiencies and resolutions are measured using high-statistics data samples collected at low and moderate pile-up in 2017, the fi ... Full text Cite

Search for new particles in final states with a boosted top quark and missing transverse momentum in proton-proton collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2024 A search for events with one top quark and missing transverse momentum in the final state is presented. The fully hadronic decay of the top quark is explored by selecting events with a reconstructed boosted top-quark topology produced in association with l ... Full text Cite

A search for R-parity-violating supersymmetry in final states containing many jets in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2024 A search for R-parity-violating supersymmetry in final states with high jet multiplicity is presented. The search uses 140 fb−1 of proton-proton collision data at s = 13 TeV collected by the ATLAS experiment during Run 2 of the Large Hadron Coll ... Full text Cite

Measurement of the total and differential cross-sections of tt¯W production in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2024 Measurements of inclusive and differential production cross-sections of a top-quark-top-antiquark pair in association with a W boson (tt¯W) are presented. They are performed by targeting final states with two same-sign or three isolated leptons (electrons ... Full text Cite

Improving topological cluster reconstruction using calorimeter cell timing in ATLAS

Journal article European Physical Journal C · May 1, 2024 Clusters of topologically connected calorimeter cells around cells with large absolute signal-to-noise ratio (topo-clusters) are the basis for calorimeter signal reconstruction in the ATLAS experiment. Topological cell clustering has proven performant in L ... Full text Cite

Measurement of t-channel production of single top quarks and antiquarks in pp collisions at 13 TeV using the full ATLAS Run 2 data sample

Journal article Journal of High Energy Physics · May 1, 2024 The production of single top quarks and top antiquarks via the t-channel exchange of a virtual W boson is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV at the LHC using 140 fb−1 of ATLAS data. The total cross-sections ... Full text Cite

Test of CP-invariance of the Higgs boson in vector-boson fusion production and in its decay into four leptons

Journal article Journal of High Energy Physics · May 1, 2024 A search for CP violation in the decay kinematics and vector-boson fusion production of the Higgs boson is performed in the H → ZZ* → 4ℓ (ℓ = e, μ) decay channel. The results are based on proton-proton collision data produced at the LHC at a cen ... Full text Cite

ATLAS Run 2 searches for electroweak production of supersymmetric particles interpreted within the pMSSM

Journal article Journal of High Energy Physics · May 1, 2024 A summary of the constraints from searches performed by the ATLAS collaboration for the electroweak production of charginos and neutralinos is presented. Results from eight separate ATLAS searches are considered, each using 140 fb−1 of proton-pr ... Full text Cite

Electron and photon efficiencies in LHC Run 2 with the ATLAS experiment

Journal article Journal of High Energy Physics · May 1, 2024 Precision measurements of electron reconstruction, identification, and isolation efficiencies and photon identification efficiencies are presented. They use the full Run 2 data sample collected by the ATLAS experiment in pp collisions at a centre-of-mass e ... Full text Cite

Search for electroweak production of supersymmetric particles in final states with two τ-leptons in s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2024 Three searches for the direct production of τ-sleptons or charginos and neutralinos in final states with at least two hadronically decaying τ-leptons are presented. For chargino and neutralino production, decays via intermediate τ-sleptons or W and h boson ... Full text Cite

Measurement and interpretation of same-sign W boson pair production in association with two jets in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2024 This paper presents the measurement of fiducial and differential cross sections for both the inclusive and electroweak production of a same-sign W-boson pair in association with two jets (W±W±jj) using 139 fb−1 of proton-pr ... Full text Cite

Combination of searches for heavy spin-1 resonances using 139 fb−1 of proton-proton collision data at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2024 A combination of searches for new heavy spin-1 resonances decaying into different pairings of W, Z, or Higgs bosons, as well as directly into leptons or quarks, is presented. The data sample used corresponds to 139 fb−1 of proton-proton collisio ... Full text Cite

The precision measurement of the W boson mass and its impact on physics

Journal article Nature Reviews Physics · March 1, 2024 As a mediator of the weak nuclear force, the W boson influences many properties of fundamental particles and their interactions. Understanding the W boson as accurately as possible, including knowing its mass, has been a priority in particle physics for de ... Full text Cite

Search for the decay of the Higgs boson to a Z boson and a light pseudoscalar particle decaying to two photons

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · March 1, 2024 A search for the decay of the Higgs boson to a Z boson and a light, pseudoscalar particle, a, decaying respectively to two leptons and to two photons is reported. The search uses the full LHC Run 2 proton–proton collision data at s=13 TeV, corresponding to ... Full text Cite

Measurement of the Centrality Dependence of the Dijet Yield in p+Pb Collisions at sqrt[s_{NN}]=8.16 TeV with the ATLAS Detector.

Journal article Physical review letters · March 2024 ATLAS measured the centrality dependence of the dijet yield using 165 nb^{-1} of p+Pb data collected at sqrt[s_{NN}]=8.16 TeV in 2016. The event centrality, which reflects the p+Pb impact parameter, is characterized by the total transverse energy registe ... Full text Cite

Study of High-Transverse-Momentum Higgs Boson Production in Association with a Vector Boson in the qqbb Final State with the ATLAS Detector.

Journal article Physical review letters · March 2024 This Letter presents the first study of Higgs boson production in association with a vector boson (V=W or Z) in the fully hadronic qqbb final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at sqrt[s]=13 TeV and corr ... Full text Cite

A precise measurement of the Z-boson double-differential transverse momentum and rapidity distributions in the full phase space of the decay leptons with the ATLAS experiment at s=8 TeV

Journal article European Physical Journal C · March 1, 2024 This paper presents for the first time a precise measurement of the production properties of the Z boson in the full phase space of the decay leptons. This is in contrast to the many previous precise unfolded measurements performed in the fiducial phase sp ... Full text Cite

Search for new phenomena with top-quark pairs and large missing transverse momentum using 140 fb−1 of pp collision data at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · March 1, 2024 A search is conducted for new phenomena in events with a top quark pair and large missing transverse momentum, where the top quark pair is reconstructed in final states with one isolated electron or muon and multiple jets. The search is performed using the ... Full text Cite

Probing the CP nature of the top–Higgs Yukawa coupling in tt¯H and tH events with H→bb¯ decays using the ATLAS detector at the LHC

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 1, 2024 The CP properties of the coupling between the Higgs boson and the top quark are investigated using 139 fb−1 of proton–proton collision data recorded by the ATLAS experiment at the LHC at a centre-of-mass energy of s=13 TeV. The CP structure of t ... Full text Cite

Performance and calibration of quark/gluon-jet taggers using 140 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Chinese Physics C · February 1, 2024 The identification of jets originating from quarks and gluons, often referred to as quark/gluon tagging, plays an important role in various analyses performed at the Large Hadron Collider, as Standard Model measurements and searches for new particles decay ... Full text Cite

Electron and photon energy calibration with the ATLAS detector using LHC Run 2 data

Journal article Journal of Instrumentation · February 1, 2024 This paper presents the electron and photon energy calibration obtained with the ATLAS detector using 140 fb−1 of LHC proton-proton collision data recorded at √s = 13 TeV between 2015 and 2018. Methods for the measurement of electron and photon ... Full text Cite

Search for New Phenomena in Two-Body Invariant Mass Distributions Using Unsupervised Machine Learning for Anomaly Detection at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · February 2024 Searches for new resonances are performed using an unsupervised anomaly-detection technique. Events with at least one electron or muon are selected from 140 fb^{-1} of pp collisions at sqrt[s]=13 TeV recorded by ATLAS at the Large Hadron Collider. The ap ... Full text Cite

Measurement of the production cross-section of J/ψ and ψ(2S) mesons in pp collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · February 1, 2024 Measurements of the differential production cross-sections of prompt and non-prompt J/ψ and ψ(2S) mesons with transverse momenta between 8 and 360 GeV and rapidity in the range |y|<2 are reported. Furthermore, measurements of the non-prompt fractions of J/ ... Full text Cite

Search for quantum black hole production in lepton + jet final states using proton-proton collisions at vs = 13 TeV with the ATLAS detector

Journal article Physical Review D · February 1, 2024 A search for quantum black holes in electron + jet and muon + jet invariant mass spectra is performed with 140 fb-1 of data collected by the ATLAS detector in proton-proton collisions at √s = 13 TeV at the Large Hadron Collider. The observed invariant mass ... Full text Cite

Study of Z→llγ decays at s = 8 TeV with the ATLAS detector

Journal article European Physical Journal C · February 1, 2024 This paper presents a study of Z→llγ decays with the ATLAS detector at the Large Hadron Collider. The analysis uses a proton–proton data sample corresponding to an integrated luminosity of 20.2 fb-1 collected at a centre-of-mass energy s = 8 TeV ... Full text Cite

Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a Z boson in the ℓ+ℓ−tt¯ and νν¯bb¯ final states using 140 fb−1 of data collected with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2024 A search for a heavy CP-odd Higgs boson, A, decaying into a Z boson and a heavy CP-even Higgs boson, H, is presented. It uses the full LHC Run 2 dataset of pp collisions at s = 13 TeV collected with the ATLAS detector, corresponding to an integrated lumino ... Full text Cite

Search for resonant production of dark quarks in the dijet final state with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2024 This paper presents a search for a new Z′ resonance decaying into a pair of dark quarks which hadronise into dark hadrons before promptly decaying back as Standard Model particles. This analysis is based on proton-proton collision data recorded at s = 13 T ... Full text Cite

Search for non-resonant Higgs boson pair production in the 2b+2ℓ+ETmiss final state in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2024 A search for non-resonant Higgs boson pair (HH) production is presented, in which one of the Higgs bosons decays to a b-quark pair (bb¯) and the other decays to WW*, ZZ*, or τ+τ−, with in each case a final state ... Full text Cite

Search for pair production of squarks or gluinos decaying via sleptons or weak bosons in final states with two same-sign or three leptons with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2024 A search for pair production of squarks or gluinos decaying via sleptons or weak bosons is reported. The search targets a final state with exactly two leptons with same-sign electric charge or at least three leptons without any charge requirement. The anal ... Full text Cite

Search for top-philic heavy resonances in pp collisions at s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · February 1, 2024 A search for the associated production of a heavy resonance with a top-quark or a top-antitop-quark pair, and decaying into a tt¯ pair is presented. The search uses the data recorded by the ATLAS detector in pp collisions at s=13 TeV at the Large Hadron Co ... Full text Cite

Erratum to: Observation of four-top-quark production in the multilepton final state with the ATLAS detector (Eur. Phys. J. C, (2023), 83, (496), 10.1140/epjc/s10052-023-11573-0)

Journal article European Physical Journal C · February 1, 2024 Corrections to two figures, one table and the corresponding numbers in the text are noted for the paper. Systematic uncertainties arising from the comparison of the nominal tt¯tt¯ simulation with alternative samples generated with Sherpa and with MadGraph5 ... Full text Cite

Measurement of the tt¯ cross section and its ratio to the Z production cross section using pp collisions at s=13.6 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 1, 2024 The inclusive top-quark-pair production cross section σtt¯ and its ratio to the Z-boson production cross section have been measured in proton–proton collisions at s=13.6 TeV, using 29 fb−1 of data collected in 2022 with the ATLAS expe ... Full text Cite

Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC.

Journal article Physical review letters · January 2024 The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations wi ... Full text Cite

Observation of WZγ Production in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · January 2024 This Letter reports the observation of WZγ production and a measurement of its cross section using 140.1±1.2 fb^{-1} of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The WZγ ... Full text Cite

Measurement of the H→ γγ and H→ ZZ∗→ 4 ℓ cross-sections in pp collisions at √s=13.6 TeV with the ATLAS detector

Journal article European Physical Journal C · January 1, 2024 The inclusive Higgs boson production cross-section is measured in the di-photon and the ZZ∗→ 4 ℓ decay channels using 31.4 and 29.0 fb - 1 of pp collision data respectively, collected with the ATLAS detector at a centre-of-mass energy ... Full text Cite

Search for non-resonant production of semi-visible jets using Run 2 data in ATLAS

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 1, 2024 Semi-visible jets, with a significant contribution to the event's missing transverse momentum, can arise in strongly interacting dark sectors. This results in an event topology where one of the jets can be aligned with the direction of the missing transver ... Full text Cite

Observation of Wγγ triboson production in proton-proton collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 1, 2024 This letter reports the observation of W(ℓν)γγ production in proton-proton collisions. This measurement uses the full Run 2 sample of events recorded at a center-of-mass energy of s=13 TeV by the ATLAS detector at the LHC, corresponding to an integrated lu ... Full text Cite

Search for the Zγ decay mode of new high-mass resonances in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 1, 2024 This letter presents a search for narrow, high-mass resonances in the Zγ final state with the Z boson decaying into a pair of electrons or muons. The s=13 TeV pp collision data were recorded by the ATLAS detector at the CERN Large Hadron Collider and have ... Full text Cite

Studies of new Higgs boson interactions through nonresonant HH production in the bb¯γγ final state in pp collisions at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2024 A search for nonresonant Higgs boson pair production in the bb¯γγ final state is performed using 140 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. This ana ... Full text Cite

Differential cross-section measurements of the production of four charged leptons in association with two jets using the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2024 Differential cross-sections are measured for the production of four charged leptons in association with two jets. These measurements are sensitive to final states in which the jets are produced via the strong interaction as well as to the purely-electrowea ... Full text Cite

Measurement of the Higgs boson mass with H → γγ decays in 140 fb−1 of s=13 TeV pp collisions with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 10, 2023 The mass of the Higgs boson is measured in the H→γγ decay channel, exploiting the high resolution of the invariant mass of photon pairs reconstructed from the decays of Higgs bosons produced in proton–proton collisions at a centre-of-mass energy s=13 TeV. ... Full text Cite

Search for exclusive Higgs and Z boson decays to ωγ and Higgs boson decays to K⁎γ with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 10, 2023 Searches for the exclusive decays of the Higgs boson to an ω meson and a photon or a K⁎ meson and a photon can probe flavour-conserving and flavour-violating Higgs boson couplings to light quarks, respectively. Searches for these decays, along w ... Full text Cite

Search for heavy long-lived multi-charged particles in the full LHC Run 2 pp collision data at s=13 TeV using the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 10, 2023 A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2015–2018 at s=13 TeV from pp collisions corresponding to an integrated luminosity of 139 fb−1 are examined. Particles prod ... Full text Cite

Search for Dark Photons in Rare Z Boson Decays with the ATLAS Detector.

Journal article Physical review letters · December 2023 A search for events with a dark photon produced in association with a dark Higgs boson via rare decays of the standard model Z boson is presented, using 139 fb^{-1} of sqrt[s]=13 TeV proton-proton collision data recorded by the ATLAS detector at the Larg ... Full text Cite

Combined Measurement of the Higgs Boson Mass from the H→γγ and H→ZZ^{*}→4ℓ Decay Channels with the ATLAS Detector Using sqrt[s]=7, 8, and 13 TeV pp Collision Data.

Journal article Physical review letters · December 2023 A measurement of the mass of the Higgs boson combining the H→ZZ^{*}→4ℓ and H→γγ decay channels is presented. The result is based on 140 fb^{-1} of proton-proton collision data collected by the ATLAS detector during LHC run 2 at a center-of-mass energy of ... Full text Cite

Erratum to: Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detector (Journal of High Energy Physics, (2018), 2018, 7, (127), 10.1007/JHEP07(2018)127)

Journal article Journal of High Energy Physics · December 1, 2023 One correction is noted for the paper. The calculation of an angle used to account for meson polarisation in the signal decays was not correct. ... Full text Cite

Search for heavy Majorana or Dirac neutrinos and right-handed W gauge bosons in final states with charged leptons and jets in pp collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · December 1, 2023 A search for heavy right-handed Majorana or Dirac neutrinos NR and heavy right-handed gauge bosons WR is performed in events with energetic electrons or muons, with the same or opposite electric charge, and energetic jets. The search ... Full text Cite

Search for vector-boson resonances decaying into a top quark and a bottom quark using pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2023 A search for a new massive charged gauge boson, W′, is performed with the ATLAS detector at the LHC. The dataset used in this analysis was collected from proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV, and corresponds to an ... Full text Cite

Search for flavour-changing neutral tqH interactions with H → γγ in pp collisions at (Formula presented.) TeV using the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2023 A search for flavour-changing neutral interactions involving the top quark, the Higgs boson and an up-type quark q (q = c, u) is presented. The proton-proton collision data set used, with an integrated luminosity of 139 fb−1, was collected at (F ... Full text Cite

Search for heavy Higgs bosons with flavour-violating couplings in multi-lepton plus b-jets final states in pp collisions at 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2023 A search for new heavy scalars with flavour-violating decays in final states with multiple leptons and b-tagged jets is presented. The results are interpreted in terms of a general two-Higgs-doublet model involving an additional scalar with couplings to th ... Full text Cite

Search for direct production of electroweakinos in final states with one lepton, jets and missing transverse momentum in pp collisions at (Formula presented.) TeV with the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2023 Searches for electroweak production of wino-like chargino pairs, χ~1+χ~1−, and of wino-like chargino and next-to-lightest neutralino, χ~1±χ~20, are presented. The model ... Full text Cite

Evidence of pair production of longitudinally polarised vector bosons and study of CP properties in ZZ → 4l events with the ATLAS detector at √s = 13 TeV

Journal article Journal of High Energy Physics · December 1, 2023 A study of the polarisation and CP properties in ZZ production is presented. The used data set corresponds to an integrated luminosity of 140 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at ... Full text Cite

Pursuit of paired dijet resonances in the Run 2 dataset with ATLAS

Journal article Physical Review D · December 1, 2023 New particles with large masses that decay into hadronically interacting particles are predicted by many models of physics beyond the Standard Model. A search for a massive resonance that decays into pairs of dijet resonances is performed using Formula Pre ... Full text Cite

Comparison of inclusive and photon-tagged jet suppression in 5.02 TeV Pb+Pb collisions with ATLAS

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2023 Parton energy loss in the quark–gluon plasma (QGP) is studied with a measurement of photon-tagged jet production in 1.7 nb−1 of Pb+Pb data and 260 pb−1 of pp data, both at sNN=5.02 TeV, with the ATLAS detector. The process ... Full text Cite

Search for pairs of muons with small displacements in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2023 A search for new phenomena giving rise to pairs of opposite electrically charged muons with impact parameters in the millimeter range is presented, using 139 fb−1 of s=13 TeV pp collision data from the ATLAS detector at the LHC. The search targe ... Full text Cite

Evidence of off-shell Higgs boson production from ZZ leptonic decay channels and constraints on its total width with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2023 This Letter reports on a search for off-shell production of the Higgs boson using 139 fb−1 of pp collision data at s= 13 TeV collected by the ATLAS detector at the Large Hadron Collider. The signature is a pair of Z bosons, with contributions fr ... Full text Cite

Measurement of the cross-sections of the electroweak and total production of a Zγ pair in association with two jets in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2023 This Letter presents the measurement of the fiducial and differential cross-sections of the electroweak production of a Zγ pair in association with two jets. The analysis uses 140 fb−1 of LHC proton–proton collision data taken at s=13 TeV record ... Full text Cite

Observation of Single-Top-Quark Production in Association with a Photon Using the ATLAS Detector.

Journal article Physical review letters · November 2023 This Letter reports the observation of single top quarks produced together with a photon, which directly probes the electroweak coupling of the top quark. The analysis uses 139 fb^{-1} of 13 TeV proton-proton collision data collected with the ATLAS detect ... Full text Cite

Author Correction: A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery.

Journal article Nature · November 2023 Full text Cite

Fast b-tagging at the high-level trigger of the ATLAS experiment in LHC Run 3

Journal article Journal of Instrumentation · November 1, 2023 The ATLAS experiment relies on real-time hadronic jet reconstruction and b-tagging to record fully hadronic events containing b-jets. These algorithms require track reconstruction, which is computationally expensive and could overwhelm the high-level-trigg ... Full text Cite

Search for a new pseudoscalar decaying into a pair of muons in events with a top-quark pair at Formula Presented with the ATLAS detector

Journal article Physical Review D · November 1, 2023 A search for a new pseudoscalar Formula Presented-boson produced in events with a top-quark pair, where the Formula Presented-boson decays into a pair of muons, is performed using Formula Presented Formula Presented collision data collected with the ATLAS ... Full text Cite

Tools for estimating fake/non-prompt lepton backgrounds with the ATLAS detector at the LHC

Journal article Journal of Instrumentation · November 1, 2023 Measurements and searches performed with the ATLAS detector at the CERN LHC often involve signatures with one or more prompt leptons. Such analyses are subject to 'fake/non-prompt' lepton backgrounds, where either a hadron or a lepton from a hadron decay o ... Full text Cite

Search for pair production of third-generation leptoquarks decaying into a bottom quark and a τ -lepton with the ATLAS detector

Journal article European Physical Journal C · November 1, 2023 A search for pair-produced scalar or vector leptoquarks decaying into a b-quark and a τ -lepton is presented using the full LHC Run 2 (2015–2018) data sample of 139 fb - 1 collected with the ATLAS detector in proton–proton collisions at a centre ... Full text Cite

Search for single vector-like B quark production and decay via (Formula presented.) in pp collisions at (Formula presented.) TeV with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2023 A search is presented for single production of a vector-like B quark decaying into a Standard Model b-quark and a Standard Model Higgs boson, which decays into a (Formula presented.) pair. The search is carried out in 139 fb−1 of (Formula presen ... Full text Cite

Performance of the reconstruction of large impact parameter tracks in the inner detector of ATLAS

Journal article European Physical Journal C · November 1, 2023 Searches for long-lived particles (LLPs) are among the most promising avenues for discovering physics beyond the Standard Model at the Large Hadron Collider (LHC). However, displaced signatures are notoriously difficult to identify due to their ability to ... Full text Cite

Search for direct production of winos and higgsinos in events with two same-charge leptons or three leptons in pp collision data at (Formula presented.) TeV with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2023 A search for supersymmetry targeting the direct production of winos and higgsinos is conducted in final states with either two leptons (e or μ) with the same electric charge, or three leptons. The analysis uses 139 fb−1 of pp collision data at ( ... Full text Cite

Search for magnetic monopoles and stable particles with high electric charges in (Formula presented.) TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2023 We present a search for magnetic monopoles and high-electric-charge objects using LHC Run (Formula presented.) TeV proton-proton collisions recorded by the ATLAS detector. A total integrated luminosity of 138 fb−1 was collected by a specialized ... Full text Cite

Search for leptoquarks decaying into the bτ final state in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2023 A search for leptoquarks decaying into the bτ final state is performed using Run 2 proton-proton collision data from the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb −1 at s = 13 TeV recorded by the ATLAS detector. ... Full text Cite

Observation of an Excess of Dicharmonium Events in the Four-Muon Final State with the ATLAS Detector.

Journal article Physical review letters · October 2023 A search is made for potential ccc[over ¯]c[over ¯] tetraquarks decaying into a pair of charmonium states in the four muon final state using proton-proton collision data at sqrt[s]=13 TeV, corresponding to an integrated luminosity of 140 fb^{-1} recorded ... Full text Cite

Observation of the γγ→ττ Process in Pb+Pb Collisions and Constraints on the τ-Lepton Anomalous Magnetic Moment with the ATLAS Detector.

Journal article Physical review letters · October 2023 This Letter reports the observation of τ-lepton-pair production in ultraperipheral lead-lead collisions Pb+Pb→Pb(γγ→ττ)Pb and constraints on the τ-lepton anomalous magnetic moment a_{τ}. The dataset corresponds to an integrated luminosity of 1.44 nb^{-1} ... Full text Cite

Measurement of the Sensitivity of Two-Particle Correlations in pp Collisions to the Presence of Hard Scatterings.

Journal article Physical review letters · October 2023 A key open question in the study of multiparticle production in high-energy pp collisions is the relationship between the "ridge"-i.e., the observed azimuthal correlations between particles in the underlying event that extend over all rapidities-and hard o ... Full text Cite

Luminosity determination in pp collisions at √s=13 TeV using the ATLAS detector at the LHC

Journal article European Physical Journal C · October 1, 2023 The luminosity determination for the ATLAS detector at the LHC during Run 2 is presented, with pp collisions at a centre-of-mass energy s=13 TeV. The absolute luminosity scale is determined using van der Meer beam separation scans during dedicated running ... Full text Cite

Measurement of Suppression of Large-Radius Jets and Its Dependence on Substructure in Pb+Pb Collisions at sqrt[s_{NN}]=5.02 TeV with the ATLAS Detector.

Journal article Physical review letters · October 2023 This letter presents a measurement of the nuclear modification factor of large-radius jets in sqrt[s_{NN}]=5.02 TeV Pb+Pb collisions by the ATLAS experiment. The measurement is performed using 1.72 nb^{-1} and 257 pb^{-1} of Pb+Pb and pp data, respectiv ... Full text Cite

Search for lepton-flavour violation in high-mass dilepton final states using 139 fb −1 of pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2023 A search is performed for a heavy particle decaying into different-flavour, dilepton final states, using 139 fb−1 of proton-proton collision data at s = 13 TeV collected in 2015–2018 by the ATLAS detector at the Large Hadron Collider. Final stat ... Full text Cite

Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2023 A search for physics beyond the Standard Model inducing periodic signals in the dielectron and diphoton invariant mass spectra is presented using 139 fb−1 of s = 13 TeV pp collision data collected by the ATLAS experiment at the LHC. Novel search ... Full text Cite

Integrated and differential fiducial cross-section measurements for the vector boson fusion production of the Higgs boson in the H →WW∗→eνμν decay channel at 13 TeV with the ATLAS detector

Journal article Physical Review D · October 1, 2023 The vector-boson production cross section for the Higgs boson decay in the Formula Presented channel is measured as a function of kinematic observables sensitive to the Higgs boson production and decay properties as well as integrated in a fiducial phase s ... Full text Cite

Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of τ-leptons with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2023 A search for a new heavy scalar particle X decaying into a Standard Model (SM) Higgs boson and a new singlet scalar particle S is presented. The search uses a proton-proton (pp) collision data sample with an integrated luminosity of 140 fb−1 rec ... Full text Cite

Measurements of multijet event isotropies using optimal transport with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2023 A measurement of novel event shapes quantifying the isotropy of collider events is performed in 140 fb−1 of proton-proton collisions with s = 13 TeV centre-of-mass energy recorded with the ATLAS detector at CERN’s Large Hadron Collider. These ev ... Full text Cite

Searches for exclusive Higgs and Z boson decays into a vector quarkonium state and a photon using 139 fb - 1 of ATLAS √s=13 TeV proton–proton collision data

Journal article European Physical Journal C · September 1, 2023 Searches for the exclusive decays of Higgs and Z bosons into a vector quarkonium state and a photon are performed in the μ+μ-γ final state with a proton–proton collision data sample corresponding to an integrated luminosity of 139 fb - 1 collect ... Full text Cite

Search for Majorana neutrinos in same-sign WW scattering events from pp collisions at √s=13 TeV

Journal article European Physical Journal C · September 1, 2023 A search for Majorana neutrinos in same-sign WW scattering events is presented. The analysis uses s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb - 1 recorded during 2015–2018 by the ATLAS detector at the Large Hadr ... Full text Cite

Anomaly detection search for new resonances decaying into a Higgs boson and a generic new particle X in hadronic final states using Formula Presented pp collisions with the ATLAS detector

Journal article Physical Review D · September 1, 2023 A search is presented for a heavy resonance Formula Presented decaying into a Standard Model Higgs boson Formula Presented and a new particle Formula Presented in a fully hadronic final state. The full Large Hadron Collider run 2 dataset of proton-proton c ... Full text Cite

Search for nonresonant pair production of Higgs bosons in the bb¯bb¯ final state in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Physical Review D · September 1, 2023 A search for nonresonant Higgs boson pair production in the Formula Presented final state is presented. The analysis uses Formula Presented of Formula Presented collision data at Formula Presented collected with the ATLAS detector at the Large Hadron Colli ... Full text Cite

Search for a light charged Higgs boson in t → H ± b decays, with H ± → cb, in the lepton+jets final state in proton-proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · September 1, 2023 A search for a charged Higgs boson, H ±, produced in top-quark decays, t → H ± b, is presented. The search targets H ± decays into a bottom and a charm quark, H ± → cb. The analysis focuses on a selection enr ... Full text Cite

Measurements of differential cross sections of Higgs boson production through gluon fusion in the H→ WW*→ eνμν final state at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · September 1, 2023 Higgs boson production via gluon–gluon fusion is measured in the WW*? e?µ? decay channel. The dataset utilized corresponds to an integrated luminosity of 139 fb - 1 collected by the ATLAS detector from s=13 TeV proton–proton collision ... Full text Cite

Measurement of the Bs0→ μμ effective lifetime with the ATLAS detector

Journal article Journal of High Energy Physics · September 1, 2023 This paper reports the first ATLAS measurement of the Bs0→ μμ effective lifetime. The measurement is based on the data collected in 2015–2016, amounting to 26.3 fb−1 of 13 TeV LHC proton-proton collisions. The proper decay- ... Full text Cite

Search for dark matter produced in association with a Higgs boson decaying to tau leptons at s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · September 1, 2023 A search for dark matter produced in association with a Higgs boson in final states with two hadronically decaying τ-leptons and missing transverse momentum is presented. The analysis uses 139 fb−1 of proton-proton collision data at s = 13 TeV c ... Full text Cite

Observation of gauge boson joint-polarisation states in W±Z production from pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2023 Measurements of joint-polarisation states of W and Z gauge bosons in W±Z production are presented. The data set used corresponds to an integrated luminosity of 139 fb−1 of proton–proton collisions at a centre-of-mass energy of 13 TeV ... Full text Cite

Measurement of the polarisation of W bosons produced in top-quark decays using dilepton events at s=13 TeV with the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2023 A measurement of the polarisation of W bosons produced in top-quark decays is presented, using proton–proton collision data at a centre-of-mass energy of s=13 TeV. The data were collected by the ATLAS detector at the Large Hadron Collider and correspond to ... Full text Cite

Measurement of the charge asymmetry in top-quark pair production in association with a photon with the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2023 A measurement of the charge asymmetry in top-quark pair (tt¯) production in association with a photon is presented. The measurement is performed in the single-lepton tt¯ decay channel using proton–proton collision data collected with the ATLAS detector at ... Full text Cite

Measurement of the Higgs boson mass in the H → ZZ⁎ → 4ℓ decay channel using 139 fb−1 of s=13 TeV pp collisions recorded by the ATLAS detector at the LHC

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2023 The mass of the Higgs boson is measured in the H→ZZ⁎→4ℓ decay channel. The analysis uses proton–proton collision data from the Large Hadron Collider at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector between 2015 and 2018, corre ... Full text Cite

Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using pp collisions at s=13 TeV

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2023 Constraints on the Higgs boson self-coupling are set by combining double-Higgs boson analyses in the bb¯bb¯, bb¯τ+τ− and bb¯γγ decay channels with single-Higgs boson analyses targeting the γγ, ZZ⁎, WW⁎, τ+ Full text Cite

Search for pair-production of vector-like quarks in pp collision events at s=13 TeV with at least one leptonically decaying Z boson and a third-generation quark with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2023 A search for the pair-production of vector-like quarks optimized for decays into a Z boson and a third-generation Standard Model quark is presented, using the full Run 2 dataset corresponding to 139fb−1 of pp collisions at s=13TeV, collected in ... Full text Cite

Search for an axion-like particle with forward proton scattering in association with photon pairs at ATLAS

Journal article Journal of High Energy Physics · August 1, 2023 A search for forward proton scattering in association with light-by-light scattering mediated by an axion-like particle is presented, using the ATLAS Forward Proton spectrometer to detect scattered protons and the central ATLAS detector to detect pairs of ... Full text Cite

Test of CP Invariance in Higgs Boson Vector-Boson-Fusion Production Using the H→γγ Channel with the ATLAS Detector.

Journal article Physical review letters · August 2023 A test of CP invariance in Higgs boson production via vector-boson fusion has been performed in the H→γγ channel using 139 fb^{-1} of proton-proton collision data at sqrt[s]=13 TeV collected by the ATLAS detector at the LHC. The optimal observable method ... Full text Cite

Search for Heavy Neutral Leptons in Decays of W Bosons Using a Dilepton Displaced Vertex in sqrt[s]=13 TeV pp Collisions with the ATLAS Detector.

Journal article Physical review letters · August 2023 A search for a long-lived, heavy neutral lepton (N) in 139 fb^{-1} of sqrt[s]=13 TeV pp collision data collected by the ATLAS detector at the Large Hadron Collider is reported. The N is produced via W→Nμ or W→Ne and decays into two charged leptons and a ... Full text Cite

Search for pair-produced vector-like top and bottom partners in events with large missing transverse momentum in pp collisions with the ATLAS detector

Journal article European Physical Journal C · August 1, 2023 A search for pair-produced vector-like quarks using events with exactly one lepton (e or μ), at least four jets including at least one b-tagged jet, and large missing transverse momentum is presented. Data from proton–proton collisions at a centre-of-mass ... Full text Cite

Measurements of W+W- production in decay topologies inspired by searches for electroweak supersymmetry

Journal article European Physical Journal C · August 1, 2023 This paper presents a measurement of fiducial and differential cross-sections for W+W- production in proton–proton collisions at s=13 TeV with the ATLAS experiment at the Large Hadron Collider using a dataset corresponding to an integ ... Full text Cite

Calibration of the light-flavour jet mistagging efficiency of the b-tagging algorithms with Z+jets events using 139 fb - 1 of ATLAS proton–proton collision data at √s=13 TeV

Journal article European Physical Journal C · August 1, 2023 The identification of b-jets, referred to as b-tagging, is an important part of many physics analyses in the ATLAS experiment at the Large Hadron Collider and an accurate calibration of its performance is essential for high-quality physics results. This pu ... Full text Cite

Strong Constraints on Jet Quenching in Centrality-Dependent p+Pb Collisions at 5.02 TeV from ATLAS.

Journal article Physical review letters · August 2023 Jet quenching is the process of color-charged partons losing energy via interactions with quark-gluon plasma droplets created in heavy-ion collisions. The collective expansion of such droplets is well described by viscous hydrodynamics. Similar evidence of ... Full text Cite

Evidence for the charge asymmetry in (Formula presented.) production at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2023 Inclusive and differential measurements of the top–antitop (Formula presented.) charge asymmetry (Formula presented.) and the leptonic asymmetry (Formula presented.) are presented in proton–proton collisions at s = 13 TeV recorded by the ATLAS experiment a ... Full text Cite

Measurement of the inclusive Formula Presented production cross section in the lepton+jets channel in pp collisions at Formula Presented with the ATLAS detector using support vector machines

Journal article Physical Review D · August 1, 2023 A measurement of the top quark pair-production cross section in the lepton + jets decay channel is presented. It is based on 4.6 fb - 1 of s = 7 TeV p p collision data collected during 2011 by the ATLAS experiment at the CERN Large Hadron Collider. A three ... Full text Cite

Measurements of the suppression and correlations of dijets in Xe+Xe collisions at Formula Presented TeV

Journal article Physical Review C · August 1, 2023 Measurements of the suppression and correlations of dijets is performed using 3 µ b − 1 of Xe+Xe data at s N N = 5.44 TeV collected with the ATLAS detector at the CERN Large Hadron Collider. Dijets with jets reconstructed using the R = 0.4 anti- k t algori ... Full text Cite

Measurements of Higgs boson production by gluon-gluon fusion and vector-boson fusion using H→WW*→eνμν decays in pp collisions at Formula Presented with the ATLAS detector

Journal article Physical Review D · August 1, 2023 Higgs boson production via gluon-gluon fusion and vector-boson fusion in proton-proton collisions is measured in the H → W W * → e ν μ ν decay channel. The Large Hadron Collider delivered proton-proton collisions at a center-of-mass energy of 13 TeV betwee ... Full text Cite

Measurement of the production of a W boson in association with a charmed hadron in pp collisions at √s=13 TeV with the ATLAS detector

Journal article Physical Review D · August 1, 2023 The production of a W boson in association with a single charm quark is studied using 140 fb - 1 of s = 13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. The charm quark is tagged by the presence of a charm ... Full text Cite

Search for displaced photons produced in exotic decays of the Higgs boson using 13 TeV pp collisions with the ATLAS detector

Journal article Physical Review D · August 1, 2023 A search is performed for delayed and nonpointing photons originating from the displaced decay of a neutral long-lived particle (LLP). The analysis uses the full run 2 dataset of proton-proton collisions delivered by the LHC at a center-of-mass energy of F ... Full text Cite

Search for flavor-changing neutral-current couplings between the top quark and the Z boson with proton-proton collisions at √s=13 TeV with the ATLAS detector

Journal article Physical Review D · August 1, 2023 A search for flavor-changing neutral-current couplings between a top quark, an up or charm quark, and a Formula Presented boson is presented, using proton-proton collision data at Formula Presented collected by the ATLAS detector at the Large Hadron Collid ... Full text Cite

Search for the charged-lepton-flavor-violating decay Z → eμ in pp collisions at √s = 13 TeV ATLAS detector

Journal article Physical Review D · August 1, 2023 A search for the charged-lepton-flavor-violating process Formula Presented is presented, using Formula Presented of Formula Presented Formula Presented collision data collected by the ATLAS experiment at the LHC. An excess in the Formula Presented invarian ... Full text Cite

New techniques for jet calibration with the ATLAS detector

Journal article European Physical Journal C · August 1, 2023 A determination of the jet energy scale is presented using proton–proton collision data with a centre-of-mass energy of s=13 TeV, corresponding to an integrated luminosity of 140 fb-1 collected using the ATLAS detector at the LHC. Jets are recon ... Full text Cite

Studies of the muon momentum calibration and performance of the ATLAS detector with pp collisions at √s=13 TeV

Journal article European Physical Journal C · August 1, 2023 This paper presents the muon momentum calibration and performance studies for the ATLAS detector based on the pp collisions data sample produced at s = 13 TeV at the LHC during Run 2 and corresponding to an integrated luminosity of 139 fb - 1 . ... Full text Cite

Search for single production of vector-like T quarks decaying into Ht or Zt in pp collisions at (Formula presented.) TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2023 This paper describes a search for the single production of an up-type vector-like quark (T) decaying as T → Ht or T → Zt. The search utilises a dataset of pp collisions at s = 13 TeV collected with the ATLAS detector during the 2015–2018 data-taking period ... Full text Cite

Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at s=13 TeV collected with the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 10, 2023 Many extensions of the Standard Model predict the production of dark matter particles at the LHC. Sufficiently light dark matter particles may be produced in decays of the Higgs boson that would appear invisible to the detector. This Letter presents a stat ... Full text Cite

Search for flavour-changing neutral-current couplings between the top quark and the photon with the ATLAS detector at s=13 TeV

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 10, 2023 This letter documents a search for flavour-changing neutral currents (FCNCs), which are strongly suppressed in the Standard Model, in events with a photon and a top quark with the ATLAS detector. The analysis uses data collected in pp collisions at s=13 Te ... Full text Cite

Exclusive dielectron production in ultraperipheral Pb+Pb collisions at √sNN = 5.02 TeV with ATLAS

Journal article Journal of High Energy Physics · July 1, 2023 Exclusive production of dielectron pairs, γγ → e + e −, is studied using Lint = 1.72 nb−1 of data from ultraperipheral collisions of lead nuclei at sNN = 5.02 TeV recorded by the ATLAS detector at the LHC. The pr ... Full text Cite

Search for heavy, long-lived, charged particles with large ionisation energy loss in pp collisions at √s = 13 TeV using the ATLAS experiment and the full Run 2 dataset

Journal article Journal of High Energy Physics · July 1, 2023 This paper presents a search for hypothetical massive, charged, long-lived particles with the ATLAS detector at the LHC using an integrated luminosity of 139 fb−1 of proton–proton collisions at s = 13 TeV. These particles are expected to move si ... Full text Cite

Search for new phenomena in final states with photons, jets and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for new phenomena has been performed in final states with at least one isolated high-momentum photon, jets and missing transverse momentum in proton–proton collisions at a centre-of-mass energy of s = 13 TeV. The data, collected by the ATLAS exper ... Full text Cite

Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A measurement of single top-quark production in the s-channel is performed in proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 13 ... Full text Cite

Search for excited τ-leptons and leptoquarks in the final state with τ-leptons and jets in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search is reported for excited τ-leptons and leptoquarks in events with two hadronically decaying τ-leptons and two or more jets. The search uses proton-proton (pp) collision data at s = 13 TeV recorded by the ATLAS experiment during the Run 2 of the Lar ... Full text Cite

Search for leptonic charge asymmetry in tt¯ W production in final states with three leptons at √s = 13 TeV

Journal article Journal of High Energy Physics · July 1, 2023 A search for the leptonic charge asymmetry (Acℓ) of top-quark-antiquark pair production in association with a W boson (tt¯ W) is presented. The search is performed using final states with exactly three charged light leptons (electrons or muons) and is base ... Full text Cite

Search for resonant and non-resonant Higgs boson pair production in the bb¯ τ+τ− decay channel using 13 TeV pp collision data from the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for Higgs boson pair production in events with two b-jets and two τ-leptons is presented, using a proton–proton collision dataset with an integrated luminosity of 139 fb −1 collected at s = 13 TeV by the ATLAS experiment at the LHC. Hig ... Full text Cite

Search for high-mass Wγ and Zγ resonances using hadronic W/Z boson decays from 139 fb −1 of pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for high-mass charged and neutral bosons decaying to Wγ and Zγ final states is presented in this paper. The analysis uses a data sample of s = 13 TeV proton-proton collisions with an integrated luminosity of 139 fb −1 collected by the A ... Full text Cite

Inclusive-photon production and its dependence on photon isolation in pp collisions at √s = 13 TeV using 139 fb −1 of ATLAS data

Journal article Journal of High Energy Physics · July 1, 2023 Measurements of differential cross sections are presented for inclusive isolated-photon production in pp collisions at a centre-of-mass energy of 13 TeV provided by the LHC and using 139 fb −1 of data recorded by the ATLAS experiment. The cross ... Full text Cite

Measurement of the properties of Higgs boson production at √s = 13 TeV in the H → γγ channel using 139 fb−1 of pp collision data with the ATLAS experiment

Journal article Journal of High Energy Physics · July 1, 2023 Measurements of Higgs boson production cross-sections are carried out in the diphoton decay channel using 139 fb−1 of pp collision data at s = 13 TeV collected by the ATLAS experiment at the LHC. The analysis is based on the definition of 101 di ... Full text Cite

Measurements of Zγ+jets differential cross sections in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 Differential cross-section measurements of Zγ production in association with hadronic jets are presented, using the full 139 fb −1 dataset of s = 13 TeV proton–proton collisions collected by the ATLAS detector during Run 2 of the LHC. Distributi ... Full text Cite

Search for a new Z′ gauge boson in 4μ events with the ATLAS experiment

Journal article Journal of High Energy Physics · July 1, 2023 This paper presents a search for a new Z′ vector gauge boson with the ATLAS experiment at the Large Hadron Collider using pp collision data collected at s = 13 TeV, corresponding to an integrated luminosity of 139 fb −1. The new gauge boson Z′ i ... Full text Cite

Charged-hadron production in pp, p+Pb, Pb+Pb, and Xe+Xe collisions at √sNN = 5 TeV with the ATLAS detector at the LHC

Journal article Journal of High Energy Physics · July 1, 2023 This paper presents measurements of charged-hadron spectra obtained in pp, p+Pb, and Pb+Pb collisions at s or sNN = 5.02 TeV, and in Xe+Xe collisions at sNN = 5.44 TeV. The data recorded by the ATLAS detector at the LHC have total integrated luminosities o ... Full text Cite

Determination of the strong coupling constant from transverse energy-energy correlations in multijet events at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 Measurements of transverse energy-energy correlations and their associated azimuthal asymmetries in multijet events are presented. The analysis is performed using a data sample corresponding to 139 fb −1 of proton-proton collisions at a centre-o ... Full text Cite

Search for dark matter produced in association with a dark Higgs boson decaying into W+ W− in the one-lepton final state at √s = 13 TeV using 139 fb −1 of pp collisions recorded with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 Several extensions of the Standard Model predict the production of dark matter particles at the LHC. A search for dark matter particles produced in association with a dark Higgs boson decaying into W+ W− in the ℓ±νqq¯′ ... Full text Cite

Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 fb −1 of 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for diphoton resonances in the mass range between 10 and 70 GeV with the ATLAS experiment at the Large Hadron Collider (LHC) is presented. The analysis is based on pp collision data corresponding to an integrated luminosity of 138 fb −1 ... Full text Cite

Search for dark photons from Higgs boson decays via ZH production with a photon plus missing transverse momentum signature from pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 This paper describes a search for dark photons (γd) in proton-proton collisions at s = 13 TeV at the Large Hadron Collider (LHC). The dark photons are searched for in the decay of Higgs bosons (H → γγd) produced through the ZH product ... Full text Cite

Inclusive and differential cross-sections for dilepton tt¯ production measured in √s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 Differential and double-differential distributions of kinematic variables of leptons from decays of top-quark pairs (tt¯) are measured using the full LHC Run 2 data sample collected with the ATLAS detector. The data were collected at a pp collision energy ... Full text Cite

Measurement of exclusive pion pair production in proton–proton collisions at √s=7TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2023 The exclusive production of pion pairs in the process pp→ ppπ+π- has been measured at s=7TeV with the ATLAS detector at the LHC, using 80μb-1 of low-luminosity data. The pion pairs were detected in the ATLAS central detector while out ... Full text Cite

Search for new phenomena in multi-body invariant masses in events with at least one isolated lepton and two jets using √s = 13 TeV proton–proton collision data collected by the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for resonances in events with at least one isolated lepton (e or μ) and two jets is performed using 139 fb −1 of s = 13 TeV proton–proton collision data recorded by the ATLAS detector at the LHC. Deviations from a smoothly falling backg ... Full text Cite

Search for third-generation vector-like leptons in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for vector-like leptons in multilepton (two, three, or four-or-more electrons plus muons) final states with zero or more hadronic τ-lepton decays is presented. The search is performed using a dataset corresponding to an integrated luminosity of 13 ... Full text Cite

Searches for lepton-flavour-violating decays of the Higgs boson into eτ and μτ in √s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 This paper presents direct searches for lepton flavour violation in Higgs boson decays, H → eτ and H → μτ, performed using data collected with the ATLAS detector at the LHC. The searches are based on a data sample of proton-proton collisions at a centre-of ... Full text Cite

Search for resonant WZ production in the fully leptonic final state in proton–proton collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2023 A search for a WZ resonance, in the fully leptonic final state (electrons or muons), is performed using 139 fb - 1 of data collected at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The results are interpr ... Full text Cite

ATLAS flavour-tagging algorithms for the LHC Run 2 pp collision dataset

Journal article European Physical Journal C · July 1, 2023 The flavour-tagging algorithms developed by the ATLAS Collaboration and used to analyse its dataset of s=13 TeV pp collisions from Run 2 of the Large Hadron Collider are presented. These new tagging algorithms are based on recurrent and deep neural network ... Full text Cite

Search for tt¯ H/ A→ tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for a new heavy scalar or pseudo-scalar Higgs boson (H/A) produced in association with a pair of top quarks, with the Higgs boson decaying into a pair of top quarks (H/A → tt¯) is reported. The search targets a final state with exactly two leptons ... Full text Cite

Search for pair-produced scalar and vector leptoquarks decaying into third-generation quarks and first- or second-generation leptons in pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for pair-produced scalar and vector leptoquarks decaying into quarks and leptons of different generations is presented. It uses the full LHC Run 2 (2015–2018) data set of 139 fb−1 collected with the ATLAS detector in proton–proton colli ... Full text Cite

Search for long-lived, massive particles in events with displaced vertices and multiple jets in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for long-lived particles decaying into hadrons is presented. The analysis uses 139 fb−1 of pp collision data collected at s = 13 TeV by the ATLAS detector at the LHC using events that contain multiple energetic jets and a displaced vert ... Full text Cite

Model-independent search for the presence of new physics in events including H → γγ with √s = 13 TeV pp data recorded by the ATLAS detector at the LHC

Journal article Journal of High Energy Physics · July 1, 2023 A model-independent search for new physics leading to final states containing a Higgs boson, with a mass of 125.09 GeV, decaying to a pair of photons is performed with 139 fb−1 of s = 13 TeV pp collision data recorded by the ATLAS detector at th ... Full text Cite

A search for heavy Higgs bosons decaying into vector bosons in same-sign two-lepton final states in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for heavy Higgs bosons produced in association with a vector boson and decaying into a pair of vector bosons is performed in final states with two leptons (electrons or muons) of the same electric charge, missing transverse momentum and jets. A da ... Full text Cite

Search in diphoton and dielectron final states for displaced production of Higgs or z bosons with the ATLAS detector in √=13 TeV pp collisions

Journal article Physical Review D · July 1, 2023 A search is presented for displaced production of Higgs bosons or Z bosons, originating from the decay of a neutral long-lived particle (LLP) and reconstructed in the decay modes H → γ γ and Z → e e . The analysis uses the full Run 2 dataset of proton-prot ... Full text Cite

Measurement of cross sections for production of a Z boson in association with a flavor-inclusive or doubly b-tagged large-radius jet in proton-proton collisions at √s = 13 TeV with the ATLAS experiment

Journal article Physical Review D · July 1, 2023 We present measurements of cross sections for production of a leptonically decaying Z boson in association with a large-radius jet in 13 TeV proton-proton collisions at the LHC, using 36 fb - 1 of data from the ATLAS detector. Integrated and differential c ... Full text Cite

Search for a new scalar resonance in flavour-changing neutral-current top-quark decays t → qX (q = u, c), with X → bb¯ , in proton-proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2023 A search for flavour-changing neutral-current decays of a top quark into an up-type quark (either up or charm) and a light scalar particle X decaying into a bottom anti-bottom quark pair is presented. The search focuses on top-quark pair production where o ... Full text Cite

Search for supersymmetry in final states with missing transverse momentum and three or more b-jets in 139 fb-1 of proton–proton collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2023 A search for supersymmetry involving the pair production of gluinos decaying via off-shell third-generation squarks into the lightest neutralino (χ~10) is reported. It exploits LHC proton–proton collision data at a centre-of-mass energy s=13 TeV with an in ... Full text Cite

Measurement of the CP properties of Higgs boson interactions with τ -leptons with the ATLAS detector

Journal article European Physical Journal C · July 1, 2023 A study of the charge conjugation and parity (CP) properties of the interaction between the Higgs boson and τ -leptons is presented. The study is based on a measurement of CP -sensitive angular observables defined by the visible decay products of τ -lepton ... Full text Cite

Search for dark matter produced in association with a single top quark and an energetic W boson in √s= 13 TeV pp collisions with the ATLAS detector

Journal article European Physical Journal C · July 1, 2023 This paper presents a search for dark matter, χ , using events with a single top quark and an energetic W boson. The analysis is based on proton–proton collision data collected with the ATLAS experiment at s= 13 TeV during LHC Run 2 (2015–2018), correspond ... Full text Cite

Search for doubly charged Higgs boson production in multi-lepton final states using 139 fb - 1 of proton–proton collisions at √s = 13 TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2023 A search for pair production of doubly charged Higgs bosons (H± ±), each decaying into a pair of prompt, isolated, and highly energetic leptons with the same electric charge, is presented. The search uses a proton–proton collision data sample at ... Full text Cite

Combination of inclusive top-quark pair production cross-section measurements using ATLAS and CMS data at s = 7 and 8 TeV

Journal article Journal of High Energy Physics · July 1, 2023 A combination of measurements of the inclusive top-quark pair production cross-section performed by ATLAS and CMS in proton–proton collisions at centre-of-mass energies of 7 and 8 TeV at the LHC is presented. The cross-sections are obtained using top-quark ... Full text Cite

Search for heavy resonances decaying into a Z or W boson and a Higgs boson in final states with leptons and b-jets in 139 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 This article presents a search for new resonances decaying into a Z or W boson and a 125 GeV Higgs boson h, and it targets the νν¯ bb¯ , ℓ+ℓ−bb¯ , or ℓ±νbb¯ final states, where ℓ = e or μ, in proton-proton collisions at s = ... Full text Cite

Measurement of electroweak Z(νν¯) γjj production and limits on anomalous quartic gauge couplings in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 The electroweak production of Z(νν¯) γ in association with two jets is studied in a regime with a photon of high transverse momentum above 150 GeV using proton–proton collisions at a centre-of-mass energy of 13 TeV at the Large Hadron Collider. The analysi ... Full text Cite

Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 A measurement of the top-quark mass (mt) in the tt¯ → lepton + jets channel is presented, with an experimental technique which exploits semileptonic decays of b-hadrons produced in the top-quark decay chain. The distribution of the invariant mas ... Full text Cite

A search for new resonances in multiple final states with a high transverse momentum Z boson in √s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 A generic search for resonances is performed with events containing a Z boson with transverse momentum greater than 100 GeV, decaying into e + e − or μ + μ −. The analysed data collected with the ATLAS detector ... Full text Cite

Search for direct pair production of sleptons and charginos decaying to two leptons and neutralinos with mass splittings near the W-boson mass in √s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 A search for the electroweak production of pairs of charged sleptons or charginos decaying into two-lepton final states with missing transverse momentum is presented. Two simplified models of R-parity-conserving supersymmetry are considered: direct pair-pr ... Full text Cite

Search for Higgs boson pair production in association with a vector boson in pp collisions at √s=13TeV with the ATLAS detector

Journal article European Physical Journal C · June 1, 2023 This paper reports a search for Higgs boson pair (hh) production in association with a vector boson (WorZ) using 139 fb - 1 of proton–proton collision data at s=13TeV recorded with the ATLAS detector at the Large Hadron Collider. The search is p ... Full text Cite

Cross-section measurements for the production of a Z boson in association with high-transverse-momentum jets in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 Cross-section measurements for a Z boson produced in association with high-transverse-momentum jets (p T ≥ 100 GeV) and decaying into a charged-lepton pair (e + e − , μ + μ −) are presented. The meas ... Full text Cite

Search for flavour-changing neutral current interactions of the top quark and the Higgs boson in events with a pair of τ-leptons in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 A search for flavour-changing neutral current (FCNC) tqH interactions involving a top quark, another up-type quark (q = u, c), and a Standard Model (SM) Higgs boson decaying into a τ-lepton pair (H → τ + τ −) is presented. The search ... Full text Cite

Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 The inclusive top-quark pair (tt¯) production cross-section σtt¯ is measured in proton–proton collisions at a centre-of-mass energy s = 5.02 TeV, using 257 pb−1 of data collected in 2017 by the ATLAS experiment at the LHC. ... Full text Cite

Constraints on spin-0 dark matter mediators and invisible Higgs decays using ATLAS 13 TeV pp collision data with two top quarks and missing transverse momentum in the final state

Journal article European Physical Journal C · June 1, 2023 This paper presents a statistical combination of searches targeting final states with two top quarks and invisible particles, characterised by the presence of zero, one or two leptons, at least one jet originating from a b-quark and missing transverse mome ... Full text Cite

Searches for new phenomena in events with two leptons, jets, and missing transverse momentum in 139 fb - 1 of √s=13 TeV pp collisions with the ATLAS detector

Journal article European Physical Journal C · June 1, 2023 Searches for new phenomena inspired by supersymmetry in final states containing an e+e- or μ+μ- pair, jets, and missing transverse momentum are presented. These searches make use of proton–proton collision data w ... Full text Cite

Observation of four-top-quark production in the multilepton final state with the ATLAS detector

Journal article European Physical Journal C · June 1, 2023 This paper presents the observation of four-top-quark (tt¯ tt¯) production in proton-proton collisions at the LHC. The analysis is performed using an integrated luminosity of 140 fb - 1 at a centre-of-mass energy of 13 TeV collected using the AT ... Full text Cite

Search for light long-lived neutral particles that decay to collimated pairs of leptons or light hadrons in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2023 A search for light long-lived neutral particles with masses in the O(MeV–GeV) range is presented. The analysis targets the production of long-lived dark photons in the decay of a Higgs boson produced via gluon–gluon fusion or in association with a W boson. ... Full text Cite

Measurements of observables sensitive to colour reconnection in tt¯ events with the ATLAS detector at √s= 13 TeV

Journal article European Physical Journal C · June 1, 2023 A measurement of observables sensitive to effects of colour reconnection in top-quark pair-production events is presented using 139 fb - 1 of 13 TeV proton–proton collision data collected by the ATLAS detector at the LHC. Events are selected by ... Full text Cite

Measurement of Zγγ production in pp collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · June 1, 2023 Cross-sections for the production of a Z boson in association with two photons are measured in proton–proton collisions at a centre-of-mass energy of 13 TeV. The data used correspond to an integrated luminosity of 139 fb - 1 recorded by the ATLA ... Full text Cite

Measurement of the total and differential Higgs boson production cross-sections at √s = 13 TeV with the ATLAS detector by combining the H → ZZ * → 4ℓ and H → γγ decay channels

Journal article Journal of High Energy Physics · May 1, 2023 The total and differential Higgs boson production cross-sections are measured through a combined statistical analysis of the H → ZZ * → 4ℓ and H → γγ decay channels. The results are based on a dataset of 139 fb −1 of proton–proton col ... Full text Cite

Measurement of the nuclear modification factor of b-jets in 5.02 TeV Pb+Pb collisions with the ATLAS detector

Journal article European Physical Journal C · May 1, 2023 This paper presents a measurement of b-jet production in Pb+Pb and pp collisions at sNN=5.02 TeV with the ATLAS detector at the LHC. The measurement uses 260 pb - 1 of pp collisions collected in 2017 and 1.4 nb - 1 of Pb+Pb collisions ... Full text Cite

Measurement of the total cross section and ρ -parameter from elastic scattering in pp collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · May 1, 2023 In a special run of the LHC with β⋆= 2.5 km, proton–proton elastic-scattering events were recorded at s=13 TeV with an integrated luminosity of 340μb-1 using the ALFA subdetector of ATLAS in 2016. The elastic cross section was measured different ... Full text Cite

Measurements of the suppression and correlations of dijets in Pb+Pb collisions at√sNN = 5.02 TeV

Journal article Physical Review C · May 1, 2023 Studies of the correlations of the two highest transverse momentum (leading) jets in individual Pb+Pb collision events can provide information about the mechanism of jet quenching by the hot and dense matter created in such collisions. In Pb+Pb and pp coll ... Full text Cite

Measurement of substructure-dependent jet suppression in Pb+Pb collisions at 5.02 TeV with the ATLAS detector

Journal article Physical Review C · May 1, 2023 The ATLAS detector at the Large Hadron Collider has been used to measure jet substructure modification and suppression in Pb+Pb collisions at a nucleon–nucleon center-of-mass energy √sNN = 5.02 TeV in comparison with proton–proton (pp ... Full text Cite

Correlations between flow and transverse momentum in Xe + Xe and Pb + Pb collisions at the LHC with the ATLAS detector: A probe of the heavy-ion initial state and nuclear deformation

Journal article Physical Review C · May 1, 2023 The correlations between flow harmonics vn for n = 2, 3, and 4 and mean transverse momentum [pT] in 129Xe + 129Xe and 208Pb + 208Pb collisions at √s = 5.44 and 5.02 TeV, respectiv ... Full text Cite

Production of ϒ(nS) mesons in Pb + Pb and pp collisions at 5.02 TeV

Journal article Physical Review C · May 1, 2023 A measurement of the production of vector bottomonium states, ϒ(1S), ϒ(2S), and ϒ(3S), in Pb + Pb and pp collisions at a center-of-mass energy per nucleon pair of 5.02 TeV is presented. The data correspond to integrated luminosities of 1.38 nb-1 ... Full text Cite

Measurement of muon pairs produced via γγ scattering in nonultraperipheral Pb + Pb collisions at √sNN = 5.02 TeV with the ATLAS detector

Journal article Physical Review C · May 1, 2023 Results of a measurement of dimuon photoproduction in nonultraperipheral Pb + Pb collisions at √sNN = 5.02 TeV are presented. Themeasurement uses ATLAS data from the 2015 and 2018 Pb + Pb data-taking periods at the LHC with an integrated luminosity of 1.94 ... Full text Cite

Differential tt¯ cross-section measurements using boosted top quarks in the all-hadronic final state with 139 fb −1 of ATLAS data

Journal article Journal of High Energy Physics · April 1, 2023 Measurements of single-, double-, and triple-differential cross-sections are presented for boosted top-quark pair-production in 13 TeV proton–proton collisions recorded by the ATLAS detector at the LHC. The top quarks are observed through their hadronic de ... Full text Cite

Observation of electroweak production of two jets and a Z-boson pair

Journal article Nature Physics · February 1, 2023 Electroweak symmetry breaking explains the origin of the masses of elementary particles through their interactions with the Higgs field. Besides the measurements of the Higgs boson properties, the study of the scattering of massive vector bosons with spin ... Full text Cite

Emulating the impact of additional proton–proton interactions in the ATLAS simulation by presampling sets of inelastic Monte Carlo events

Journal article Computing and Software for Big Science · December 1, 2022 The accurate simulation of additional interactions at the ATLAS experiment for the analysis of proton–proton collisions delivered by the Large Hadron Collider presents a significant challenge to the computing resources. During the LHC Run 2 (2015–2018), th ... Full text Cite

AtlFast3: The Next Generation of Fast Simulation in ATLAS

Journal article Computing and Software for Big Science · December 1, 2022 The ATLAS experiment at the Large Hadron Collider has a broad physics programme ranging from precision measurements to direct searches for new particles and new interactions, requiring ever larger and ever more accurate datasets of simulated Monte Carlo ev ... Full text Cite

Search for type-III seesaw heavy leptons in leptonic final states in pp collisions at √s=13TeV with the ATLAS detector

Journal article European Physical Journal C · November 1, 2022 A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139fb-1 of integrated luminosity recorded by t ... Full text Cite

Measurement of the polarisation of single top quarks and antiquarks produced in the t-channel at √s = 13 TeV and bounds on the tWb dipole operator from the ATLAS experiment

Journal article Journal of High Energy Physics · November 1, 2022 A simultaneous measurement of the three components of the top-quark and top-antiquark polarisation vectors in t-channel single-top-quark production is presented. This analysis is based on data from proton–proton collisions at a centre-of-mass energy of 13 ... Full text Cite

Search for Higgs boson pair production in the two bottom quarks plus two photons final state in pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · September 1, 2022 Searches are performed for nonresonant and resonant di-Higgs boson production in the bb¯γγ final state. The dataset used corresponds to an integrated luminosity of 139 fb-1 of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the AT ... Full text Cite

Search for invisible Higgs-boson decays in events with vector-boson fusion signatures using 139 fb −1 of proton-proton data recorded by the ATLAS experiment

Journal article Journal of High Energy Physics · August 1, 2022 A direct search for Higgs bosons produced via vector-boson fusion and subsequently decaying into invisible particles is reported. The analysis uses 139 fb−1 of pp collision data at a centre-of-mass energy of s = 13 TeV recorded by the ATLAS dete ... Full text Cite

Measurements of the Higgs boson inclusive and differential fiducial cross-sections in the diphoton decay channel with pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2022 A measurement of inclusive and differential fiducial cross-sections for the production of the Higgs boson decaying into two photons is performed using 139 fb−1 of proton-proton collision data recorded at s = 13 TeV by the ATLAS experiment at the ... Full text Cite

Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment

Journal article Journal of High Energy Physics · August 1, 2022 This paper presents updated Monte Carlo configurations used to model the production of single electroweak vector bosons (W, Z/γ∗) in association with jets in proton-proton collisions for the ATLAS experiment at the Large Hadron Collider. Improve ... Full text Cite

Study of Bc+→J/ψDs+ and Bc+→J/ψDs∗+ decays in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2022 A study of Bc+→J/ψDs+ and Bc+→J/ψDs∗+ decays using 139 fb−1 of integrated luminosity collected with the ATLAS detector from s = 13 TeV pp collisions at the LHC is presented. The ratios of the branching fractions of the two decays to the branchin ... Full text Cite

Observation of WWW Production in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · August 2022 This Letter reports the observation of WWW production and a measurement of its cross section using 139 fb^{-1} of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Events with tw ... Full text Cite

Measurements of Higgs boson production cross-sections in the H → τ + τ − decay channel in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2022 Measurements of the production cross-sections of the Standard Model (SM) Higgs boson (H) decaying into a pair of τ-leptons are presented. The measurements use data collected with the ATLAS detector from pp collisions produced at the Large Hadron Collider a ... Full text Cite

Direct constraint on the Higgs–charm coupling from a search for Higgs boson decays into charm quarks with the ATLAS detector

Journal article European Physical Journal C · August 1, 2022 A search for the Higgs boson decaying into a pair of charm quarks is presented. The analysis uses proton–proton collisions to target the production of a Higgs boson in association with a leptonically decaying W or Z boson. The dataset delivered by the LHC ... Full text Cite

Measurements of jet observables sensitive to b -quark fragmentation in t t ¯ events at the LHC with the ATLAS detector

Journal article Physical Review D · August 1, 2022 Several observables sensitive to the fragmentation of b quarks into b hadrons are measured using 36 fb-1 of s=13 TeV proton-proton collision data collected with the ATLAS detector at the LHC. Jets containing b hadrons are obtained from a sample of dilepton ... Full text Cite

Search for events with a pair of displaced vertices from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in pp collisions at s =13 TeV

Journal article Physical Review D · August 1, 2022 A search for events with two displaced vertices from long-lived particle (LLP) pairs using data collected by the ATLAS detector at the LHC is presented. This analysis uses 139 fb-1 of proton-proton collision data at s=13 TeV recorded in 2015-2018. The sear ... Full text Cite

A search for an unexpected asymmetry in the production of e+μ− and e−μ+ pairs in proton–proton collisions recorded by the ATLAS detector at s=13 TeV

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · July 10, 2022 This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e+μ− and e−μ+ pairs to constrain physics processes beyond the Standard Model. It uses 139fb−1 Full text Cite

Search for long-lived charginos based on a disappearing-track signature using 136 fb - 1 of pp collisions at √s = 13 TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2022 A search for long-lived charginos produced either directly or in the cascade decay of heavy prompt gluino states is presented. The search is based on proton–proton collision data collected at a centre-of-mass energy of s = 13 TeV between 2015 and 2018 with ... Full text Cite

Two-particle Bose–Einstein correlations in pp collisions at √s=13 TeV measured with the ATLAS detector at the LHC

Journal article European Physical Journal C · July 1, 2022 This paper presents studies of Bose–Einstein correlations (BEC) in proton–proton collisions at a centre-of-mass energy of 13 TeV, using data from the ATLAS detector at the CERN Large Hadron Collider. Data were collected in a special low-luminosity configur ... Full text Cite

Constraints on Higgs boson properties using WW∗(→ eνμν) jj production in 36.1fb-1 of √s=13 TeV pp collisions with the ATLAS detector

Journal article European Physical Journal C · July 1, 2022 This article presents the results of two studies of Higgs boson properties using the WW∗(→ eνμν) jj final state, based on a dataset corresponding to 36.1 fb - 1 of s=13 TeV proton–proton collisions recorded by the ATLAS experiment at ... Full text Cite

A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery.

Journal article Nature · July 2022 The standard model of particle physics1-4 describes the known fundamental particles and forces that make up our Universe, with the exception of gravity. One of the central features of the standard model is a field that permeates all of space and ... Full text Cite

Jets and Jet Substructure at Future Colliders

Journal article Frontiers in Physics · June 22, 2022 Even though jet substructure was not an original design consideration for the Large Hadron Collider (LHC) experiments, it has emerged as an essential tool for the current physics program. We examine the role of jet substructure on the motivation fo ... Full text Cite

Search for associated production of a Z boson with an invisibly decaying Higgs boson or dark matter candidates at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 10, 2022 A search for invisible decays of the Higgs boson as well as searches for dark matter candidates, produced together with a leptonically decaying Z boson, are presented. The analysis is performed using proton−proton collisions at a centre-of-mass energy of 1 ... Full text Cite

Measurement of the nuclear modification factor for muons from charm and bottom hadrons in Pb+Pb collisions at 5.02 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 10, 2022 Heavy-flavour hadron production provides information about the transport properties and microscopic structure of the quark–gluon plasma created in ultra-relativistic heavy-ion collisions. A measurement of the muons from semileptonic decays of charm and bot ... Full text Cite

Vector boson scattering processes: Status and prospects

Journal article Reviews in Physics · June 1, 2022 Insight into the electroweak (EW) and Higgs sectors can be achieved through measurements of vector boson scattering (VBS) processes. The scattering of EW bosons are rare processes that are precisely predicted in the Standard Model (SM) and are closely rela ... Full text Cite

Search for neutral long-lived particles in pp collisions at √s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

Journal article JOURNAL OF HIGH ENERGY PHYSICS · June 1, 2022 Full text Link to item Cite

Measurements of azimuthal anisotropies of jet production in Pb+ Pb collisions at sNN =5.02 TeV with the ATLAS detector

Journal article Physical Review C · June 1, 2022 The azimuthal variation of jet yields in heavy-ion collisions provides information about the path-length dependence of the energy loss experienced by partons passing through the hot, dense nuclear matter known as the quark-gluon plasma. This paper presents ... Full text Cite

Measurements of differential cross-sections in top-quark pair events with a high transverse momentum top quark and limits on beyond the Standard Model contributions to top-quark pair production with the ATLAS detector at √s = 13 TeV

Journal article Journal of High Energy Physics · June 1, 2022 Cross-section measurements of top-quark pair production where the hadronically decaying top quark has transverse momentum greater than 355 GeV and the other top quark decays into ℓνb are presented using 139 fb−1 of data collected by the ATLAS ex ... Full text Cite

Measurement of Higgs boson decay into b-quarks in associated production with a top-quark pair in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2022 The associated production of a Higgs boson and a top-quark pair is measured in events characterised by the presence of one or two electrons or muons. The Higgs boson decay into a b-quark pair is used. The analysed data, corresponding to an integrated lumin ... Full text Cite

Determination of the parton distribution functions of the proton using diverse ATLAS data from pp collisions at √s=7 , 8 and 13 TeV

Journal article European Physical Journal C · May 1, 2022 This paper presents an analysis at next-to-next-to-leading order in the theory of quantum chromodynamics for the determination of a new set of proton parton distribution functions using diverse measurements in pp collisions at s=7, 8 and 13 TeV, performed ... Full text Cite

Constraints on Higgs boson production with large transverse momentum using H →b b ¯ decays in the ATLAS detector

Journal article Physical Review D · May 1, 2022 This paper reports constraints on Higgs boson production with transverse momentum above 1 TeV. The analyzed data from proton-proton collisions at a center-of-mass energy of 13 TeV were recorded with the ATLAS detector at the Large Hadron Collider from 2015 ... Full text Cite

Search for resonant pair production of Higgs bosons in the b b ¯ b b ¯ final state using pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · May 1, 2022 A search for resonant Higgs boson pair production in the bb¯bb¯ final state is presented. The analysis uses 126 fb-1-139 fb-1 of pp collision data at s=13 TeV collected with the ATLAS detector at the Large Hadron Collider. The analysis is divided into two ... Full text Cite

Search for single production of a vectorlike T quark decaying into a Higgs boson and top quark with fully hadronic final states using the ATLAS detector

Journal article Physical Review D · May 1, 2022 A search is made for a vectorlike T quark decaying into a Higgs boson and a top quark in 13 TeV proton-proton collisions using the ATLAS detector at the Large Hadron Collider with a data sample corresponding to an integrated luminosity of 139 fb-1. The Hig ... Full text Cite

High-precision measurement of the W boson mass with the CDF II detector.

Journal article Science (New York, N.Y.) · April 2022 The mass of the W boson, a mediator of the weak force between elementary particles, is tightly constrained by the symmetries of the standard model of particle physics. The Higgs boson was the last missing component of the model. After observation of ... Full text Cite

Measurement of the energy asymmetry in tt¯ j production at 13 TeV with the ATLAS experiment and interpretation in the SMEFT framework

Journal article European Physical Journal C · April 1, 2022 A measurement of the energy asymmetry in jet-associated top-quark pair production is presented using 139fb-1 of data collected by the ATLAS detector at the Large Hadron Collider during pp collisions at s=13TeV. The observable measures the different probabi ... Full text Cite

Search for flavour-changing neutral-current interactions of a top quark and a gluon in pp collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · April 1, 2022 A search is presented for the production of a single top quark via left-handed flavour-changing neutral-current (FCNC) interactions of a top quark, a gluon and an up or charm quark. Two production processes are considered: u+ g→ t and c+ g→ t. The analysis ... Full text Cite

Search for Higgs bosons decaying into new spin-0 or spin-1 particles in four-lepton final states with the ATLAS detector with 139 fb −1 of pp collision data at √s = 13 TeV

Journal article Journal of High Energy Physics · March 1, 2022 Searches are conducted for new spin-0 or spin-1 bosons using events where a Higgs boson with mass 125 GeV decays into four leptons (ℓ = e, μ). This decay is presumed to occur via an intermediate state which contains two on-shell, promptly decaying bosons: ... Full text Cite

Measurement of the energy response of the ATLAS calorimeter to charged pions from W±→ τ±(→ π±ντ) ντ events in Run 2 data

Journal article European Physical Journal C · March 1, 2022 The energy response of the ATLAS calorimeter is measured for single charged pions with transverse momentum in the range 10 < pT< 300 GeV. The measurement is performed using 139 fb - 1 of LHC proton–proton collision data at s=13 TeV ta ... Full text Cite

The ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2

Journal article European Physical Journal C · March 1, 2022 The design and performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016–2018 data taking period is discussed. In 2016, 2017, and 2018 the ATLAS detector recorded 35.6fb-1, 46. ... Full text Cite

Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector

Journal article European Physical Journal C · February 1, 2022 This paper presents a measurement of the electroweak production of two jets in association with a Zγ pair, with the Z boson decaying into two neutrinos. It also presents a search for invisible or partially invisible decays of a Higgs boson with a mass of 1 ... Full text Cite

Search for new phenomena in three- or four-lepton events in ppcollisions at √s = 13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 10, 2022 A search with minimal model dependence for physics beyond the Standard Model in events featuring three or four charged leptons (3ℓ and 4ℓ, ℓ=e,μ) is presented. The analysis aims to be sensitive to a wide range of potential new-physics theories simultaneous ... Full text Cite

Performance of the ATLAS Level-1 topological trigger in Run 2

Journal article European Physical Journal C · January 1, 2022 During LHC Run 2 (2015–2018) the ATLAS Level-1 topological trigger allowed efficient data-taking by the ATLAS experiment at luminosities up to 2.1× 1034 cm- 2s- 1, which exceeds the design value by a factor of two. The syst ... Full text Cite

Search for exotic decays of the Higgs boson into b b¯ and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2022 A search for the exotic decay of the Higgs boson (H) into a bb¯ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb−1 of pp collisions at s = 13 TeV. ... Full text Cite

Operation and performance of the ATLAS semiconductor tracker in LHC Run 2

Journal article Journal of Instrumentation · January 1, 2022 The semiconductor tracker (SCT) is one of the tracking systems for charged particles in the ATLAS detector. It consists of 4088 silicon strip sensor modules. During Run 2 (2015-2018) the Large Hadron Collider delivered an integrated luminosity of 156 fb Full text Cite

Search for Higgs boson decays into a pair of pseudoscalar particles in the bbμμ final state with the ATLAS detector in pp collisions at s =13 TeV

Journal article Physical Review D · January 1, 2022 This paper presents a search for decays of the Higgs boson with a mass of 125 GeV into a pair of new pseudoscalar particles, H→aa, where one a-boson decays into a b-quark pair and the other into a muon pair. The search uses 139 fb-1 of proton-proton collis ... Full text Cite

Search for heavy particles in the b -tagged dijet mass distribution with additional b -tagged jets in proton-proton collisions at s =13 TeV with the ATLAS experiment

Journal article Physical Review D · January 1, 2022 A search optimized for new heavy particles decaying to two b-quarks and produced in association with additional b-quarks is reported. The sensitivity is improved by b-tagging at least one lower-pT jet in addition to the two highest-pT jets. The data used i ... Full text Cite

Erratum to: Search for single top-quark production via flavour-changing neutral currents at 8 TeV with the ATLAS detector (The European Physical Journal C, (2016), 76, 2, (55), 10.1140/epjc/s10052-016-3876-4)

Journal article European Physical Journal C · January 1, 2022 One correction is noted for the paper. The branching fraction (Formula presented.) was not included in the conversion of the observed cross-section limit, (Formula presented.) to the coupling constants κugt and κcgt and the branching fractions B(t → ug) an ... Full text Cite

Configuration and performance of the ATLAS b-jet triggers in Run 2

Journal article European Physical Journal C · December 1, 2021 Several improvements to the ATLAS triggers used to identify jets containing b-hadrons (b-jets) were implemented for data-taking during Run 2 of the Large Hadron Collider from 2016 to 2018. These changes include reconfiguring the b-jet trigger software to i ... Full text Cite

Measurement of b-quark fragmentation properties in jets using the decay B ± → J/ψK ± in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · December 1, 2021 The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb−1 of pp collisions at s = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018. The B mesons are reconstruc ... Full text Cite

Search for chargino–neutralino pair production in final states with three leptons and missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detector

Journal article European Physical Journal C · December 1, 2021 A search for chargino–neutralino pair production in three-lepton final states with missing transverse momentum is presented. The study is based on a dataset of s=13 TeV pp collisions recorded with the ATLAS detector at the LHC, corresponding to an integrat ... Full text Cite

Search for charginos and neutralinos in final states with two boosted hadronically decaying bosons and missing transverse momentum in pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · December 1, 2021 A search for charginos and neutralinos at the Large Hadron Collider using fully hadronic final states and missing transverse momentum is reported. Pair-produced charginos or neutralinos are explored, each decaying into a high-pT Standard Model weak boson. ... Full text Cite

Search for new phenomena in pp collisions in final states with tau leptons, b -jets, and missing transverse momentum with the ATLAS detector

Journal article Physical Review D · December 1, 2021 A search for new phenomena in final states with hadronically decaying tau leptons, b-jets, and missing transverse momentum is presented. The analyzed dataset comprises pp collision data at a center-of-mass energy of s=13 TeV with an integrated luminosity o ... Full text Cite

Search for Lepton-Flavor Violation in Z-Boson Decays with τ Leptons with the ATLAS Detector.

Journal article Physical review letters · December 2021 A search for lepton-flavor-violating Z→eτ and Z→μτ decays with pp collision data recorded by the ATLAS detector at the LHC is presented. This analysis uses 139 fb^{-1} of Run 2 pp collisions at sqrt[s]=13 TeV and is combined with the results of a similar ... Full text Cite

Erratum to: Measurement of hadronic event shapes in high-p T multijet final states at s = 13 TeV with the ATLAS detector (Journal of High Energy Physics, (2021), 2021, 1, (188), 10.1007/JHEP01(2021)188)

Journal article Journal of High Energy Physics · December 1, 2021 An error in the normalization of the Aplanarity and D-parameter has been found. Insufficient precision on the eigenvalue calculation can cause λ3 to be negative, exclusively in two-jet events, yielding an underestimation of the inclusive two-jet ... Full text Cite

Search for resonances decaying into photon pairs in 139 fb−1 of pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2021 Searches for new resonances in the diphoton final state, with spin 0 as predicted by theories with an extended Higgs sector and with spin 2 using a warped extra-dimension benchmark model, are presented using 139 fb−1 of s=13 TeV pp collision dat ... Full text Cite

Measurement of the t t¯ t t¯ production cross section in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2021 A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the Large Hadron Collider corresponding to an integrated luminosity of 139 fb−1 is presented. E ... Full text Cite

Search for R-parity-violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using √s=13TeV proton–proton collision data

Journal article European Physical Journal C · November 1, 2021 A search for R-parity-violating supersymmetry in final states characterized by high jet multiplicity, at least one isolated light lepton and either zero or at least three b-tagged jets is presented. The search uses 139fb-1 of s=13TeV proton–proton collisio ... Full text Cite

Erratum to: Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb −1 of Pb+Pb data with the ATLAS detector (Journal of High Energy Physics, (2021), 2021, 3, (243), 10.1007/JHEP03(2021)243)

Journal article Journal of High Energy Physics · November 1, 2021 One correction is noted for the paper, which does not affect the results reported. The right panel of figure 9 is corrected as it contained the “internal” label, giving the misleading impression on the credibility of the figure. ... Full text Cite

Measurement of the charge asymmetry of electrons from the decays of W bosons produced in p p ¯ collisions at s =1.96 TeV MEASUREMENT of the CHARGE ASYMMETRY of ELECTRONS ... T. AALTONEN et al.

Journal article Physical Review D · November 1, 2021 At the Fermilab Tevatron proton-antiproton (pp¯) collider, high-mass electron-neutrino (eν) pairs are produced predominantly in the process pp¯→W(→eν)+X. The asymmetry of the electron and positron yield as a function of their pseudorapidity constrain the s ... Full text Cite

Measurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2021 A measurement of prompt photon-pair production in proton-proton collisions at s = 13 TeV is presented. The data were recorded by the ATLAS detector at the LHC with an integrated luminosity of 139 fb−1. Events with two photons in the well-instrum ... Full text Cite

Search for dark matter produced in association with a Standard Model Higgs boson decaying into b-quarks using the full Run 2 dataset from the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2021 The production of dark matter in association with Higgs bosons is predicted in several extensions of the Standard Model. An exploration of such scenarios is presented, considering final states with missing transverse momentum and b-tagged jets consistent w ... Full text Cite

Search for exotic decays of the Higgs boson into long-lived particles in pp collisions at √s = 13 TeV using displaced vertices in the ATLAS inner detector

Journal article Journal of High Energy Physics · November 1, 2021 A novel search for exotic decays of the Higgs boson into pairs of long-lived neutral particles, each decaying into a bottom quark pair, is performed using 139 fb−1 of s = 13 TeV proton-proton collision data collected with the ATLAS detector at t ... Full text Cite

Search for dark matter in events with missing transverse momentum and a Higgs boson decaying into two photons in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2021 A search for dark-matter particles in events with large missing transverse momentum and a Higgs boson candidate decaying into two photons is reported. The search uses 139 fb−1 of proton-proton collision data collected at s = 13 TeV with the ATLA ... Full text Cite

Search for dark matter produced in association with a single top quark in √s=13 TeV pp collisions with the ATLAS detector

Journal article European Physical Journal C · October 1, 2021 This paper presents a search for dark matter in the context of a two-Higgs-doublet model together with an additional pseudoscalar mediator, a, which decays into the dark-matter particles. Processes where the pseudoscalar mediator is produced in association ... Full text Cite

Search for New Phenomena in Final States with Two Leptons and One or No b-Tagged Jets at sqrt[s]=13 TeV Using the ATLAS Detector.

Journal article Physical review letters · October 2021 A search for new phenomena is presented in final states with two leptons and one or no b-tagged jets. The event selection requires the two leptons to have opposite charge, the same flavor (electrons or muons), and a large invariant mass. The analysis is ba ... Full text Cite

Erratum to: Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at √s = 13 TeV with the ATLAS detector (The European Physical Journal C, (2021), 81, 7, (600), 10.1140/epjc/s10052-021-09344-w)

Journal article European Physical Journal C · October 1, 2021 In this article the title was incorrectly given as ‘Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at √s = 13 with the ATLAS detector’ but should have been ‘Search for squarks and gluinos in f ... Full text Cite

Searching for metastable particles using graph computing.

Journal article Scientific reports · September 2021 The reconstruction of charged particle trajectories at the Large Hadron Collider and future colliders relies on energy depositions in sensors placed at distances ranging from a centimeter to a meter from the colliding beams. We propose a method of detectin ... Full text Cite

Evidence for Higgs boson decays to a low-mass dilepton system and a photon in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2021 A search for the Higgs boson decaying into a photon and a pair of electrons or muons with an invariant mass mℓℓ<30 GeV is presented. The analysis is performed using 139 fb−1 of proton–proton collision data, produced by the LHC at a ce ... Full text Cite

Measurement of single top-quark production in association with a W boson in the single-lepton channel at √s=8TeV with the ATLAS detector

Journal article European Physical Journal C · August 1, 2021 The production cross-section of a top quark in association with a W boson is measured using proton–proton collisions at s=8TeV. The dataset corresponds to an integrated luminosity of 20.2fb-1, and was collected in 2012 by the ATLAS detector at the Large Ha ... Full text Cite

Jet energy scale and resolution measured in proton–proton collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · August 1, 2021 Jet energy scale and resolution measurements with their associated uncertainties are reported for jets using 36–81 fb- 1 of proton–proton collision data with a centre-of-mass energy of s=13 TeV collected by the ATLAS detector at the LHC. Jets ar ... Full text Cite

Exclusive dimuon production in ultraperipheral Pb + Pb collisions at √sNN= 5.02 TeV with ATLAS

Journal article Physical Review C · August 1, 2021 Exclusive dimuon production in ultraperipheral collisions (UPC), resulting from photon-photon interactions in the strong electromagnetic fields of colliding high-energy lead nuclei, PbPb(γγ) → μ+μ-(Pb(∗)Pb(∗)), is studied using Lint = 0.48 nb-1 of √sNN = 5 ... Full text Cite

Measurements of the inclusive and differential production cross sections of a top-quark–antiquark pair in association with a Z boson at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · August 1, 2021 Measurements of both the inclusive and differential production cross sections of a top-quark–antiquark pair in association with a Z boson (tt¯ Z) are presented. The measurements are performed by targeting final states with three or four isolated leptons (e ... Full text Cite

Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents

Journal article Journal of Instrumentation · August 1, 2021 Non-ionizing energy loss causes bulk damage to the silicon sensors of the ATLAS pixel and strip detectors. This damage has important implications for data-taking operations, charged-particle track reconstruction, detector simulations, and physics analysis. ... Full text Cite

Search for bottom-squark pair production in pp collision events at s =13 TeV with hadronically decaying τ -leptons, b -jets, and missing transverse momentum using the ATLAS detector

Journal article Physical Review D · August 1, 2021 A search for pair production of bottom squarks in events with hadronically decaying τ-leptons, b-tagged jets, and large missing transverse momentum is presented. The analyzed dataset is based on proton-proton collisions at s=13 TeV delivered by the Large H ... Full text Cite

Search for charged-lepton-flavour violation in Z-boson decays with the ATLAS detector

Journal article Nature Physics · July 1, 2021 Leptons with essentially the same properties apart from their mass are grouped into three families (or flavours). The number of leptons of each flavour is conserved in interactions, but this is not imposed by fundamental principles. Since the formulation o ... Full text Cite

Measurements of differential cross-sections in four-lepton events in 13 TeV proton-proton collisions with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2021 Measurements of four-lepton differential and integrated fiducial cross-sections in events with two same-flavour, opposite-charge electron or muon pairs are presented. The data correspond to 139 fb−1 of s = 13 TeV proton-proton collisions, collec ... Full text Cite

Test of the universality of τ and μ lepton couplings in W-boson decays with the ATLAS detector

Journal article Nature Physics · July 1, 2021 The standard model of particle physics encapsulates our best current understanding of physics at the smallest scales. A fundamental axiom of this theory is the universality of the couplings of the different generations of leptons to the electroweak gauge b ... Full text Cite

Two-particle azimuthal correlations in photonuclear ultraperipheral Pb+Pb collisions at 5.02 TeV with ATLAS

Journal article Physical Review C · July 1, 2021 Two-particle long-range azimuthal correlations are measured in photonuclear collisions using 1.7nb-1 of 5.02 TeV Pb+Pb collision data collected by the ATLAS experiment at the CERN Large Hadron Collider. Candidate events are selected using a dedicated high- ... Full text Cite

Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at √s=13 with the ATLAS detector

Journal article European Physical Journal C · July 1, 2021 The results of a search for gluino and squark pair production with the pairs decaying via the lightest charginos into a final state consisting of two W bosons, the lightest neutralinos (χ~10), and quarks, are presented: the signal is characterised by the p ... Full text Cite

Measurement of the relative Bc± /B± production cross section with the ATLAS detector at s =8 TeV MEASUREMENT of the RELATIVE Bc± /B± ... AABOUD M. et al.

Journal article Physical Review D · July 1, 2021 The total cross section and differential cross sections for the production of Bc± mesons, times their branching fraction to J/ψπ±, are measured relative to those for the production of B± mesons, times their branching fraction to J/ψK±. The data used for th ... Full text Cite

A search for the decays of stopped long-lived particles at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2021 A search for long-lived particles, which have come to rest within the ATLAS detector, is presented. The subsequent decays of these particles can produce high-momentum jets, resulting in large out-of-time energy deposits in the ATLAS calorimeters. These de- ... Full text Cite

Search for Displaced Leptons in sqrt[s]=13 TeV pp Collisions with the ATLAS Detector.

Journal article Physical review letters · July 2021 A search for charged leptons with large impact parameters using 139 fb^{-1} of sqrt[s]=13 TeV pp collision data from the ATLAS detector at the LHC is presented, addressing a long-standing gap in coverage of possible new physics signatures. Results are co ... Full text Cite

Search for supersymmetry in events with four or more charged leptons in 139 fb −1 of √s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2021 A search for supersymmetry in events with four or more charged leptons (electrons, muons and τ-leptons) is presented. The analysis uses a data sample corresponding to 139 fb−1 of proton-proton collisions delivered by the Large Hadron Collider at ... Full text Cite

Muon reconstruction and identification efficiency in ATLAS using the full Run 2 pp collision data set at √s=13 TeV

Journal article European Physical Journal C · July 1, 2021 This article documents the muon reconstruction and identification efficiency obtained by the ATLAS experiment for 139 fb - 1 of pp collision data at s=13 TeV collected between 2015 and 2018 during Run 2 of the LHC. The increased instantaneous lu ... Full text Cite

Determination of the parton distribution functions of the proton from ATLAS measurements of differential W± and Z boson production in association with jets

Journal article Journal of High Energy Physics · July 1, 2021 This article presents a new set of proton parton distribution functions, ATLASepWZVjet20, produced in an analysis at next-to-next-to-leading order in QCD. The new data sets considered are the measurements of W+ and W− boson and Z boso ... Full text Cite

Performance of the ATLAS RPC detector and Level-1 muon barrel trigger at √s = 13 TeV

Journal article Journal of Instrumentation · July 1, 2021 The ATLAS experiment at the Large Hadron Collider (LHC) employs a trigger system consisting of a first-level hardware trigger (L1) and a software-based high-level trigger. The L1 muon trigger system selects muon candidates, assigns them to the correct LHC ... Full text Cite

The ATLAS fast TracKer system

Journal article Journal of Instrumentation · July 1, 2021 The ATLAS Fast TracKer (FTK) was designed to provide full tracking for the ATLAS high-level trigger by using pattern recognition based on Associative Memory (AM) chips and fitting in high-speed field programmable gate arrays. The tracks found by the FTK ar ... Full text Cite

Measurements of W + W −+ ≥ 1 jet production cross-sections in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2021 Fiducial and differential cross-section measurements of W+W− production in association with at least one hadronic jet are presented. These measurements are sensitive to the properties of electroweak-boson self-interactions and provide ... Full text Cite

Search for new phenomena in events with an energetic jet and missing transverse momentum in pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · June 1, 2021 Results of a search for new physics in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 139 fb-1 at a center-of-mass energy of 1 ... Full text Cite

Search for trilepton resonances from chargino and neutralino pair production in s =13 TeV pp collisions with the ATLAS detector

Journal article Physical Review D · June 1, 2021 A search is performed for the electroweak pair production of charginos and associated production of a chargino and neutralino, each of which decays through an R-parity-violating coupling into a lepton and a W, Z, or Higgs boson. The trilepton invariant-mas ... Full text Cite

Measurements of Higgs bosons decaying to bottom quarks from vector boson fusion production with the ATLAS experiment at √s=13TeV

Journal article European Physical Journal C · June 1, 2021 The paper presents a measurement of the Standard Model Higgs Boson decaying to b-quark pairs in the vector boson fusion (VBF) production mode. A sample corresponding to 126 fb - 1 of s=13TeV proton–proton collision data, collected with the ATLAS ... Full text Cite

Search for charged Higgs bosons decaying into a top quark and a bottom quark at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2021 A search for charged Higgs bosons decaying into a top quark and a bottom quark is presented. The data analysed correspond to 139 fb−1 of proton-proton collisions at s = 13 TeV, recorded with the ATLAS detector at the LHC. The production of a hea ... Full text Cite

Search for doubly and singly charged Higgs bosons decaying into vector bosons in multi-lepton final states with the ATLAS detector using proton-proton collisions at √s = 13 TeV

Journal article Journal of High Energy Physics · June 1, 2021 A search for charged Higgs bosons decaying into W±W± or W±Z bosons is performed, involving experimental signatures with two leptons of the same charge, or three or four leptons with a variety of charge combinations, missing ... Full text Cite

Search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2021 A search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton is presented. The search is based on a dataset of pp collisions at s = 13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Col ... Full text Cite

Observation of photon-induced W+W− production in pp collisions at s=13 TeV using the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · May 10, 2021 This letter reports the observation of photon-induced production of W-boson pairs, γγ→WW. The analysis uses 139 fb−1 of LHC proton–proton collision data taken at s=13 TeV recorded by the ATLAS experiment during the years 2015–2018. The measureme ... Full text Cite

Measurement of the associated production of a Higgs boson decaying into b-quarks with a vector boson at high transverse momentum in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · May 10, 2021 The associated production of a Higgs boson with a W or Z boson decaying into leptons and where the Higgs boson decays to a bb¯ pair is measured in the high vector-boson transverse momentum regime, above 250 GeV, with the ATLAS detector. The analysed data, ... Full text Cite

Erratum to: Higgs boson production cross-section measurements and their EFT interpretation in the 4 ℓ decay channel at s = 13 TeV with the ATLAS detector (The European Physical Journal C, (2020), 80, 10, (957), 10.1140/epjc/s10052-020-8227-9)

Journal article European Physical Journal C · May 1, 2021 When quoting the final cross section result in the text of the paper (Eur. Phys. J. C 80 (2020) 957), the theory component of the uncertainty was incorrectly set to 0.04 pb while the correct value of 0.03 pb was given in Table 8 and in all other results re ... Full text Cite

Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the ℓℓbb and ℓℓWW final states in pp collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · May 1, 2021 A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H, is performed using a data sample corresponding to an integrated luminosity of 139 fb- 1 from proton–proton collisions at s=13 TeV recorded by ... Full text Cite

Search for new phenomena in final states with b-jets and missing transverse momentum in √s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2021 The results of a search for new phenomena in final states with b-jets and missing transverse momentum using 139 fb−1 of proton-proton data collected at a centre-of-mass energy s = 13 TeV by the ATLAS detector at the LHC are reported. The analysi ... Full text Cite

Erratum to: Search for the HH → bb¯ bb¯ process via vector-boson fusion production using proton-proton collisions at s = 13 TeV with the ATLAS detector (Journal of High Energy Physics, (2020), 2020, 7, (108), 10.1007/JHEP07(2020)108)

Journal article Journal of High Energy Physics · May 1, 2021 One correction is noted for the paper. ... Full text Cite

Search for pair production of scalar leptoquarks decaying into first- or second-generation leptons and top quarks in proton–proton collisions at √s = 13 TeV with the ATLAS detector

Journal article European Physical Journal C · April 1, 2021 A search for pair production of scalar leptoquarks, each decaying into either an electron or a muon and a top quark, is presented. This is the first leptoquark search using ATLAS data to investigate top-philic cross-generational couplings that could provid ... Full text Cite

Erratum: Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector (Journal of High Energy Physics, (2020), 2020, 11, (5), 10.1007/JHEP11(2020)005)

Journal article Journal of High Energy Physics · April 1, 2021 The Lagrangian in eq. (2.1) of JHEP11 (2020) 005 has an erroneous factor of 1/2. The analysis code used for the results reported in the paper does not have this factor. The results remain unchanged. ... Full text Cite

Search for heavy resonances decaying into a pair of Z bosons in the ℓ+ℓ-ℓ′ +ℓ′ - and ℓ+ℓ-νν¯ final states using 139 fb - 1 of proton–proton collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · April 1, 2021 A search for heavy resonances decaying into a pair of Z bosons leading to ℓ+ℓ-ℓ′ +ℓ′ - and ℓ+ℓ-νν¯ final states, where ℓ stands for either an electron or a muon, is presented. The search use ... Full text Cite

Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton–proton collisions

Journal article European Physical Journal C · April 1, 2021 Jet substructure has provided new opportunities for searches and measurements at the LHC, and has seen continuous development since the optimization of the large-radius jet definition used by ATLAS was performed during Run 1. A range of new inputs to jet r ... Full text Cite

Search for new phenomena in events with two opposite-charge leptons, jets and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2021 The results of a search for direct pair production of top squarks and for dark matter in events with two opposite-charge leptons (electrons or muons), jets and missing transverse momentum are reported, using 139 fb−1 of integrated luminosity fro ... Full text Cite

Search for new phenomena with top quark pairs in final states with one lepton, jets, and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2021 A search for new phenomena with top quark pairs in final states with one isolated electron or muon, multiple jets, and large missing transverse momentum is performed. Signal regions are designed to search for two-, three-, and four-body decays of the direc ... Full text Cite

Measurement of the CP-violating phase ϕs in Bs0→J/ψϕ decays in ATLAS at 13 TeV

Journal article European Physical Journal C · April 1, 2021 A measurement of the Bs0→J/ψϕ decay parameters using 80.5fb-1 of integrated luminosity collected with the ATLAS detector from 13 Te proton–proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕs, the ... Full text Cite

Search for type-III seesaw heavy leptons in dilepton final states in pp collisions at √s=13TeV with the ATLAS detector

Journal article European Physical Journal C · March 1, 2021 A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139fb-1 of integrated luminosity recorded by t ... Full text Cite

Erratum to: Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC (The European Physical Journal C, (2021), 81, 1, (11), 10.1140/epjc/s10052-020-08730-0)

Journal article European Physical Journal C · March 1, 2021 In the original HTML version of this article, one affiliation of the author V. O. Tikhomirov was missing. He is affiliated to the following two affiliations: P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia National Resear ... Full text Cite

Search for Dark Matter Produced in Association with a Dark Higgs Boson Decaying into W^{±}W^{∓} or ZZ in Fully Hadronic Final States from sqrt[s]=13 TeV pp Collisions Recorded with the ATLAS Detector.

Journal article Physical review letters · March 2021 Several extensions of the Standard Model predict the production of dark matter particles at the LHC. An uncharted signature of dark matter particles produced in association with VV=W^{±}W^{∓} or ZZ pairs from a decay of a dark Higgs boson s is searched for ... Full text Cite

Longitudinal Flow Decorrelations in Xe+Xe Collisions at sqrt[s_{NN}]=5.44 TeV with the ATLAS Detector.

Journal article Physical review letters · March 2021 The first measurement of longitudinal decorrelations of harmonic flow amplitudes v_{n} for n=2-4 in Xe+Xe collisions at sqrt[s_{NN}]=5.44 TeV is obtained using 3 μb^{-1} of data with the ATLAS detector at the LHC. The decorrelation signal for v_{3} and v ... Full text Cite

Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb−1 of Pb+Pb data with the ATLAS detector

Journal article Journal of High Energy Physics · March 1, 2021 This paper describes a measurement of light-by-light scattering based on Pb+Pb collision data recorded by the ATLAS experiment during Run 2 of the LHC. The study uses 2.2 nb−1 of integrated luminosity collected in 2015 and 2018 at sNN = 5.02 TeV ... Full text Cite

Search for Higgs boson production in association with a high-energy photon via vector-boson fusion with decay into bottom quark pairs at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · March 1, 2021 A search is presented for the production of the Standard Model Higgs boson in association with a high-energy photon. With a focus on the vector-boson fusion process and the dominant Higgs boson decay into b-quark pairs, the search benefits from a large red ... Full text Cite

Measurements of WH and ZH production in the H→ bb¯ decay channel in pp collisions at 13Te with the ATLAS detector

Journal article European Physical Journal C · February 1, 2021 Measurements of the Standard Model Higgs boson decaying into a bb¯ pair and produced in association with a W or Z boson decaying into leptons, using proton–proton collision data collected between 2015 and 2018 by the ATLAS detector, are presented. The meas ... Full text Cite

Differential cross-section measurements for the electroweak production of dijets in association with a Z boson in proton–proton collisions at ATLAS

Journal article European Physical Journal C · February 1, 2021 Differential cross-section measurements are presented for the electroweak production of two jets in association with a Z boson. These measurements are sensitive to the vector-boson fusion production mechanism and provide a fundamental test of the gauge str ... Full text Cite

Medium-Induced Modification of Z-Tagged Charged Particle Yields in Pb+Pb Collisions at 5.02 TeV with the ATLAS Detector.

Journal article Physical review letters · February 2021 The yield of charged particles opposite to a Z boson with large transverse momentum (p_{T}) is measured in 260 pb^{-1} of pp and 1.7 nb^{-1} of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collide ... Full text Cite

Search for squarks and gluinos in final states with jets and missing transverse momentum using 139 fb −1 of √s = 13 TeV pp collision data with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2021 A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded by the ATLAS experiment ... Full text Cite

Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · February 1, 2021 A search for dark matter is conducted in final states containing a photon and missing transverse momentum in proton-proton collisions at s = 13 TeV. The data, collected during 2015–2018 by the ATLAS experiment at the CERN LHC, correspond to an integrated l ... Full text Cite

Measurement of the jet mass in high transverse momentum Z(→bb‾)γ production at s=13TeV using the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 10, 2021 The integrated fiducial cross-section and unfolded differential jet mass spectrum of high transverse momentum Z→bb‾ decays are measured in Zγ events in proton–proton collisions at s=13TeV. The data analysed were collected between 2015 and 2016 with the ATL ... Full text Cite

A search for the dimuon decay of the Standard Model Higgs boson with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 10, 2021 A search for the dimuon decay of the Standard Model (SM) Higgs boson is performed using data corresponding to an integrated luminosity of 139 fb−1 collected with the ATLAS detector in Run 2 pp collisions at s=13 TeV at the Large Hadron Collider. ... Full text Cite

Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC

Journal article European Physical Journal C · January 1, 2021 A search is presented for new phenomena in events characterised by high jet multiplicity, no leptons (electrons or muons), and four or more jets originating from the fragmentation of b-quarks (b-jets). The search uses 139fb-1 of s = 13 TeV proton–proton co ... Full text Cite

Measurements of top-quark pair single- and double-differential cross-sections in the all-hadronic channel in pp collisions at √s = 13 TeV using the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2021 Differential cross-sections are measured for top-quark pair production in the all-hadronic decay mode, using proton-proton collision events collected by the ATLAS experiment in which all six decay jets are separately resolved. Absolute and normalised singl ... Full text Cite

Measurement of hadronic event shapes in high-p T multijet final states at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2021 A measurement of event-shape variables in proton-proton collisions at large momentum transfer is presented using data collected at s = 13 TeV with the ATLAS detector at the Large Hadron Collider. Six event-shape variables calculated using hadronic jets are ... Full text Cite

Erratum to: Higgs boson production cross-section measurements and their EFT interpretation in the 4 ℓ decay channel at s = 13 TeV with the ATLAS detector (The European Physical Journal C, (2020), 80, 10, (957), 10.1140/epjc/s10052-020-8227-9)

Journal article European Physical Journal C · January 1, 2021 In the published HTML version of this article, the affiliations of the authors of the National Research Nuclear University MEPhI, Moscow, Russia were unfortunately marked incorrectly. ... Full text Cite

Erratum to: Search for the HH → bb¯ bb¯ process via vector-boson fusion production using proton-proton collisions at s = 13 TeV with the ATLAS detector (Journal of High Energy Physics, (2020), 2020, 7, (108), 10.1007/JHEP07(2020)108)

Journal article Journal of High Energy Physics · January 1, 2021 One correction is noted for the paper. A wrong cross-section was used for the theory prediction in figure 6 due to not taking into account the VHH contamination properly in the rescaling formula for the signal samples. ... Full text Cite

Search for resonances decaying into a weak vector boson and a Higgs boson in the fully hadronic final state produced in proton-proton collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · December 17, 2020 A search for heavy resonances decaying into a W or Z boson and a Higgs boson produced in proton-proton collisions at the Large Hadron Collider at s=13 TeV is presented. The analysis utilizes the dominant W→qq¯′ or Z→qq¯ and H→bb¯ decays with substructure t ... Full text Cite

Search for Higgs boson decays into two new low-mass spin-0 particles in the 4b channel with the ATLAS detector using pp collisions at √s = 13 TeV

Journal article Physical Review D · December 7, 2020 This paper describes a search for beyond the Standard Model decays of the Higgs boson into a pair of new spin-0 particles subsequently decaying into b-quark pairs, H → aa → (bb¯)(bb¯), using protonproton collision data collected by the ATLAS detector at th ... Full text Cite

Determination of jet calibration and energy resolution in proton–proton collisions at √s=8TeV using the ATLAS detector

Journal article European Physical Journal C · December 1, 2020 The jet energy scale, jet energy resolution, and their systematic uncertainties are measured for jets reconstructed with the ATLAS detector in 2012 using proton–proton data produced at a centre-of-mass energy of 8 TeV with an integrated luminosity of 20fb- ... Full text Cite

Alignment of the ATLAS Inner Detector in Run 2

Journal article European Physical Journal C · December 1, 2020 The performance of the ATLAS Inner Detector alignment has been studied using pp collision data at s=13TeV collected by the ATLAS experiment during Run 2 (2015–2018) of the Large Hadron Collider (LHC). The goal of the detector alignment is to determine the ... Full text Cite

Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · December 2020 This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at sqrt[s]=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminos ... Full text Cite

Observation and Measurement of Forward Proton Scattering in Association with Lepton Pairs Produced via the Photon Fusion Mechanism at ATLAS.

Journal article Physical review letters · December 2020 The observation of forward proton scattering in association with lepton pairs (e^{+}e^{-}+p or μ^{+}μ^{-}+p) produced via photon fusion is presented. The scattered proton is detected by the ATLAS Forward Proton spectrometer, while the leptons are reconstru ... Full text Cite

Search for heavy diboson resonances in semileptonic final states in pp collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · December 1, 2020 This paper reports on a search for heavy resonances decaying into WW, ZZ or WZ using proton–proton collision data at a centre-of-mass energy of s=13 TeV. The data, corresponding to an integrated luminosity of 139 fb 1, were recorded with the ATL ... Full text Cite

Measurement of the tt¯ production cross-section in the lepton+jets channel at s=13 TeV with the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2020 The top anti-top quark production cross-section is measured in the lepton+jets channel using proton–proton collision data at a centre-of-mass energy of s=13 TeV collected with the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosi ... Full text Cite

Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector

Journal article Journal of High Energy Physics · November 1, 2020 A search for new physics with non-resonant signals in dielectron and dimuon final states in the mass range above 2 TeV is presented. This is the first search for non-resonant signals in dilepton final states at the LHC to use a background estimate from the ... Full text Cite

Performance of the upgraded PreProcessor of the ATLAS Level-1 Calorimeter Trigger

Journal article Journal of Instrumentation · November 1, 2020 The PreProcessor of the ATLAS Level-1 Calorimeter Trigger prepares the analogue trigger signals sent from the ATLAS calorimeters by digitising, synchronising, and calibrating them to reconstruct transverse energy deposits, which are then used in further pr ... Full text Cite

Erratum to: Measurements of top-quark pair differential and double-differential cross-sections in the ℓ +jets channel with pp collisions at s = 13 TeV using the ATLAS detector [Eur. Phys. J. C 79 (2019) 1028] (The European Physical Journal C, (2019), 79, 12, (1028), 10.1140/epjc/s10052-019-7525-6)

Journal article European Physical Journal C · November 1, 2020 Corrections for five figures and six tables are noted for the paper, which do not affect the conclusions reported. ... Full text Cite

Search for top squarks in events with a Higgs or Z boson using 139 fb - 1 of pp collision data at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · November 1, 2020 This paper presents a search for direct top squark pair production in events with missing transverse momentum plus either a pair of jets consistent with Standard Model Higgs boson decay into b-quarks or a same-flavour opposite-sign dilepton pair with an in ... Full text Cite

Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · November 1, 2020 A search is presented for four-top-quark production using an integrated luminosity of 139 fb- 1 of proton–proton collision data at a centre-of-mass energy of 13TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a ... Full text Cite

Search for Higgs Boson Decays into a Z Boson and a Light Hadronically Decaying Resonance Using 13 TeV pp Collision Data from the ATLAS Detector.

Journal article Physical review letters · November 2020 A search for Higgs boson decays into a Z boson and a light resonance in two-lepton plus jet events is performed, using a pp collision dataset with an integrated luminosity of 139 fb^{-1} collected at sqrt[s]=13 TeV by the ATLAS experiment at the CERN LHC ... Full text Cite

Reconstruction and identification of boosted di-τ systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS

Journal article Journal of High Energy Physics · November 1, 2020 In this paper, a new technique for reconstructing and identifying hadronically decaying τ+τ− pairs with a large Lorentz boost, referred to as the di-τ tagger, is developed and used for the first time in the ATLAS experiment at the Lar ... Full text Cite

A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · October 10, 2020 A search for the Zγ decay of the Higgs boson, with Z boson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 recorded by the A ... Full text Cite

Search for direct production of electroweakinos in final states with missing transverse momentum and a Higgs boson decaying into photons in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2020 A search for a chargino-neutralino pair decaying via the 125 GeV Higgs boson into photons is presented. The study is based on the data collected between 2015 and 2018 with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 139 fb Full text Cite

Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2020 This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb−1 of proton-proton collision data recorded at a centre-of-mass energy of s = 13 TeV with the ATLAS detector at the Large Hadron Collider. The se ... Full text Cite

Higgs boson production cross-section measurements and their EFT interpretation in the 4 ℓ decay channel at √s= 13 TeV with the ATLAS detector

Journal article European Physical Journal C · October 1, 2020 Higgs boson properties are studied in the four-lepton decay channel (where lepton = e, μ) using 139 fb - 1 of proton–proton collision data recorded at s=13 TeV by the ATLAS experiment at the Large Hadron Collider. The inclusive cross-section tim ... Full text Cite

Measurements of the Higgs boson inclusive and differential fiducial cross sections in the 4 ℓ decay channel at √s = 13 TeV

Journal article European Physical Journal C · October 1, 2020 Inclusive and differential fiducial cross sections of the Higgs boson are measured in the H→ ZZ∗→ 4 ℓ (ℓ= e, μ) decay channel. The results are based on proton−proton collision data produced at the Large Hadron Collider at a centre-of-mass energy ... Full text Cite

Erratum: Measurement of differential cross sections and W + /W − cross-section ratios for W boson production in association with jets at s = 8 TeV with the ATLAS detector (Journal of High Energy Physics, (2018), 2018, 5, (77), 10.1007/JHEP05(2018)077)

Journal article Journal of High Energy Physics · October 1, 2020 Two additions impacting tables 3 and 4 in ref. [1] are presented in the following. No significant impact is found for other results or figures in ref. [1]. ... Full text Cite

Search for pairs of scalar leptoquarks decaying into quarks and electrons or muons in √s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2020 A search for new-physics resonances decaying into a lepton and a jet performed by the ATLAS experiment is presented. Scalar leptoquarks pair-produced in pp collisions at s = 13 TeV at the Large Hadron Collider are considered using an integrated luminosity ... Full text Cite

Erratum to: Measurement of differential cross sections for single diffractive dissociation in s = 8 TeV pp collisions using the ATLAS ALFA spectrometer (Journal of High Energy Physics, (2020), 2020, 2, (42), 10.1007/JHEP02(2020)042)

Journal article Journal of High Energy Physics · October 1, 2020 The ATLAS collaboration E-mail: atlas.publications@cern.ch Erratum to: JHEP02(2020)042 ArXiv ePrint: 1911.00453 Figure 5b of the paper [1] contained a misinterpretation in the comparison between the reported new ATLAS measurement of the process pp ! Xp and ... Full text Cite

Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using √s = 13 TeV proton-proton collisions recorded by ATLAS in Run 2 of the LHC

Journal article Journal of High Energy Physics · October 1, 2020 Results of a search for new particles decaying into eight or more jets and moderate missing transverse momentum are presented. The analysis uses 139 fb−1 of proton-proton collision data at s = 13 TeV collected by the ATLAS experiment at the Larg ... Full text Cite

Operation of the ATLAS trigger system in Run 2

Journal article Journal of Instrumentation · October 1, 2020 The ATLAS experiment at the Large Hadron Collider employs a two-level trigger system to record data at an average rate of 1 kHz from physics collisions, starting from an initial bunch crossing rate of 40 MHz. During the LHC Run 2 (2015–2018), the ATLAS tri ... Full text Cite

Measurements of inclusive and differential cross-sections of combined tt¯ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · September 1, 2020 Inclusive and differential cross-sections for the production of top quarks in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 139 fb−1. The data were collected by the ATLAS de ... Full text Cite

Dijet Resonance Search with Weak Supervision Using sqrt[s]=13 TeV pp Collisions in the ATLAS Detector.

Journal article Physical review letters · September 2020 This Letter describes a search for narrowly resonant new physics using a machine-learning anomaly detection procedure that does not rely on signal simulations for developing the analysis selection. Weakly supervised learning is used to train classifiers di ... Full text Cite

Physics potential of timing layers in future collider detectors

Journal article Journal of Instrumentation · September 1, 2020 The physics potential of timing layers with a few tens of pico-second resolution in the calorimeters of future collider detectors is explored. These studies show how such layers can be used for particle identification and illustrate the potential for detec ... Full text Cite

Performance of the ATLAS muon triggers in Run 2

Journal article Journal of Instrumentation · September 1, 2020 The performance of the ATLAS muon trigger system is evaluated with proton-proton (pp) and heavy-ion (HI) collision data collected in Run 2 during 2015-2018 at the Large Hadron Collider. It is primarily evaluated using events containing a pair of muons from ... Full text Cite

Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in Pb+Pb collisions at sNN=5.02 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2020 Azimuthal anisotropies of muons from charm and bottom hadron decays are measured in Pb+Pb collisions at sNN=5.02TeV. The data were collected with the ATLAS detector at the Large Hadron Collider in 2015 and 2018 with integrated luminosities of 0. ... Full text Cite

CP Properties of Higgs Boson Interactions with Top Quarks in the tt[over ¯]H and tH Processes Using H→γγ with the ATLAS Detector.

Journal article Physical review letters · August 2020 A study of the charge conjugation and parity (CP) properties of the interaction between the Higgs boson and top quarks is presented. Higgs bosons are identified via the diphoton decay channel (H→γγ), and their production in association with a top quark pai ... Full text Cite

Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · August 1, 2020 The results of a search for electroweakino pair production pp→χ~1±χ~20 in which the chargino (χ~1±) decays into a W boson and the lightest neutralino (χ~10), while the heavier neutralino (χ~20) decays into the Standard Model 125 GeV Higgs boson and a secon ... Full text Cite

Search for heavy neutral Higgs bosons produced in association with b-quarks and decaying into b-quarks at s =13 TeV with the ATLAS detector

Journal article Physical Review D · August 1, 2020 A search for heavy neutral Higgs bosons produced in association with one or two b-quarks and decaying to b-quark pairs is presented using 27.8 fb-1 of s=13 TeV proton-proton collision data recorded by the ATLAS detector at the Large Hadron Collider during ... Full text Cite

Search for long-lived, massive particles in events with a displaced vertex and a muon with large impact parameter in pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · August 1, 2020 A search for long-lived particles decaying into hadrons and at least one muon is presented. The analysis selects events that pass a muon or missing-transverse-momentum trigger and contain a displaced muon track and a displaced vertex. The analyzed dataset ... Full text Cite

Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV

Journal article Journal of High Energy Physics · August 1, 2020 The combination of measurements of the W boson polarization in top quark decays performed by the ATLAS and CMS collaborations is presented. The measurements are based on proton-proton collision data produced at the LHC at a centre-of-mass energy of 8 TeV, ... Full text Cite

Measurements of top-quark pair spin correlations in the eμ channel at √s=13 TeV using pp collisions in the ATLAS detector

Journal article European Physical Journal C · August 1, 2020 A measurement of observables sensitive to spin correlations in tt¯ production is presented, using 36.1 fb - 1 of pp collision data at s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider. Differential cross-sections are measure ... Full text Cite

Search for a scalar partner of the top quark in the all-hadronic tt¯ plus missing transverse momentum final state at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · August 1, 2020 A search for direct pair production of scalar partners of the top quark (top squarks or scalar third-generation up-type leptoquarks) in the all-hadronic tt¯ plus missing transverse momentum final state is presented. The analysis of 139 fb - 1 of ... Full text Cite

Performance of the missing transverse momentum triggers for the ATLAS detector during Run-2 data taking

Journal article Journal of High Energy Physics · August 1, 2020 The factor of four increase in the LHC luminosity, from 0.5 × 1034 cm−2s−1 to 2.0 × 1034cm−2s−1, and the corresponding increase in pile-up collisions during the 2015–2018 data-taking period, ... Full text Cite

Measurements of the production cross-section for a Z boson in association with b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2020 This paper presents a measurement of the production cross-section of a Z boson in association with b-jets, in proton-proton collisions at s = 13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity ... Full text Cite

Search for the HH → bb¯ bb¯ process via vector-boson fusion production using proton-proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2020 A search for Higgs boson pair production via vector-boson fusion (VBF) in the bb¯ bb¯ final state is carried out with the ATLAS experiment using 126 fb−1 of proton- proton collision data delivered at s = 13 TeV by the Large Hadron Collider. This ... Full text Cite

Measurement of the transverse momentum distribution of Drell–Yan lepton pairs in proton–proton collisions at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · July 1, 2020 This paper describes precision measurements of the transverse momentum pTℓℓ (ℓ= e, μ) and of the angular variable ϕη∗ distributions of Drell–Yan lepton pairs in a mass range of 66–116 GeV. The analysis uses data from 36.1 fb- 1 of proton–proton ... Full text Cite

Observation of the associated production of a top quark and a Z boson in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2020 Single top-quark production in association with a Z boson, where the Z boson decays to a pair of charged leptons, is measured in the trilepton channel. The proton-proton collision data collected by the ATLAS experiment from 2015 to 2018 at a centre-of-mass ... Full text Cite

Search for Heavy Higgs Bosons Decaying into Two Tau Leptons with the ATLAS Detector Using pp Collisions at sqrt[s]=13 TeV.

Journal article Physical review letters · July 2020 A search for heavy neutral Higgs bosons is performed using the LHC Run 2 data, corresponding to an integrated luminosity of 139 fb^{-1} of proton-proton collisions at sqrt[s]=13 TeV recorded with the ATLAS detector. The search for heavy resonances is per ... Full text Cite

Test of CP invariance in vector-boson fusion production of the Higgs boson in the H → ττ channel in proton–proton collisions at [Formula presented] with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 10, 2020 A test of CP invariance in Higgs boson production via vector-boson fusion is performed in the H→ττ decay channel. This test uses the Optimal Observable method and is carried out using 36.1fb−1 of s=13TeV proton–proton collision data collected by ... Full text Cite

Search for squarks and gluinos in final states with same-sign leptons and jets using 139 fb −1 of data collected with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2020 A search for supersymmetric partners of gluons and quarks is presented, involving signatures with jets and either two isolated leptons (electrons or muons) with the same electric charge, or at least three isolated leptons. A data sample of proton-proton co ... Full text Cite

Erratum to: Search for diboson resonances in hadronic final states in 139 fb −1 of pp collisions at s = 13 TeV with the ATLAS detector (Journal of High Energy Physics, (2019), 2019, 9, (91), 10.1007/JHEP09(2019)091)

Journal article Journal of High Energy Physics · June 1, 2020 A mistake was identified for the paper [1] in the treatment of the radion [2] cross-sections, which resulted in multiple changes. ... Full text Cite

Measurement of the Lund Jet Plane Using Charged Particles in 13 TeV Proton-Proton Collisions with the ATLAS Detector.

Journal article Physical review letters · June 2020 The prevalence of hadronic jets at the LHC requires that a deep understanding of jet formation and structure is achieved in order to reach the highest levels of experimental and theoretical precision. There have been many measurements of jet substructure a ... Full text Cite

Measurement of the tt¯ production cross-section and lepton differential distributions in eμ dilepton events from pp collisions at √s=13TeV with the ATLAS detector

Journal article European Physical Journal C · June 1, 2020 The inclusive top quark pair (tt¯) production cross-section σtt¯ has been measured in proton–proton collisions at s=13TeV, using 36.1 fb- 1 of data collected in 2015–2016 by the ATLAS experiment at the LHC. Using events wi ... Full text Cite

Search for dijet resonances in events with an isolated charged lepton using √s = 13 TeV proton-proton collision data collected by the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2020 A search for dijet resonances in events with at least one isolated charged lepon is performed using 139 fb−1 of s = 13 TeV proton-proton collision data recorded by the ATLAS detector at the LHC. The dijet invariant-mass (mjj) distribu ... Full text Cite

Search for light long-lived neutral particles produced in pp collisions at √s=13TeV and decaying into collimated leptons or light hadrons with the ATLAS detector

Journal article European Physical Journal C · May 1, 2020 Several models of physics beyond the Standard Model predict the existence of dark photons, light neutral particles decaying into collimated leptons or light hadrons. This paper presents a search for long-lived dark photons produced from the decay of a Higg ... Full text Cite

Evidence for electroweak production of two jets in association with a Zγ pair in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · April 10, 2020 Evidence for electroweak production of two jets in association with a Zγ pair in s=13 TeV proton–proton collisions at the Large Hadron Collider is presented. The analysis uses data collected by the ATLAS detector in 2015 and 2016 that corresponds to an int ... Full text Cite

Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in s =13 TeV pp collisions with the ATLAS detector

Journal article Physical Review D · April 1, 2020 A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken ... Full text Cite

ATLAS data quality operations and performance for 2015-2018 data-taking

Journal article Journal of Instrumentation · April 1, 2020 The ATLAS detector at the Large Hadron Collider reads out particle collision data from over 100 million electronic channels at a rate of approximately 100 kHz, with a recording rate for physics events of approximately 1 kHz. Before being certified for phys ... Full text Cite

A fast method for particle tracking and triggering using small-radius silicon detectors

Journal article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · March 21, 2020 We propose an algorithm, deployable on a highly-parallelized graph computing architecture, to perform rapid reconstruction of charged-particle trajectories in the high energy collisions at the Large Hadron Collider and future colliders. We use software emu ... Full text Cite

Z boson production in Pb+Pb collisions at √Snn = 5.02 TeV measured by the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · March 10, 2020 The production yield of Z bosons is measured in the electron and muon decay channels in Pb+Pb collisions at √Snn = 5.02 TeV with the ATLAS detector. Data from the 2015 LHC run corresponding to an integrated luminosity of 0.49 nb-1 are ... Full text Cite

Searches for electroweak production of supersymmetric particles with compressed mass spectra in s =13 TeV pp collisions with the ATLAS detector

Journal article Physical Review D · March 1, 2020 This paper presents results of searches for the electroweak production of supersymmetric particles in models with compressed mass spectra. The searches use 139 fb-1 of s=13 TeV proton-proton collision data collected by the ATLAS experiment at the Large Had ... Full text Cite

Measurement of the Z(→ ℓ + ℓ −)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · March 1, 2020 The production of a prompt photon in association with a Z boson is studied in proton-proton collisions at a centre-of-mass energy s = 13 TeV. The analysis uses a data sample with an integrated luminosity of 139 fb−1 collected by the ATLAS detect ... Full text Cite

Measurement of soft-drop jet observables in pp collisions with the ATLAS detector at s =13 TeV

Journal article Physical Review D · March 1, 2020 Jet substructure quantities are measured using jets groomed with the soft-drop grooming procedure in dijet events from 32.9 fb-1 of pp collisions collected with the ATLAS detector at s=13 TeV. These observables are sensitive to a wide range of QCD phenomen ... Full text Cite

Search for new resonances in mass distributions of jet pairs using 139 fb −1 of pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · March 1, 2020 A search for new resonances decaying into a pair of jets is reported using the dataset of proton-proton collisions recorded at s = 13 TeV with the ATLAS detector at the Large Hadron Collider between 2015 and 2018, corresponding to an integrated luminosity ... Full text Cite

Search for long-lived neutral particles produced in pp collisions at s =13 TeV decaying into displaced hadronic jets in the ATLAS inner detector and muon spectrometer

Journal article Physical Review D · March 1, 2020 A search is presented for pair production of long-lived neutral particles using 33 fb-1 of s=13 TeV proton-proton collision data, collected during 2016 by the ATLAS detector at the LHC. This search focuses on a topology in which one long-lived particle dec ... Full text Cite

Measurement of isolated-photon plus two-jet production in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · March 1, 2020 The dynamics of isolated-photon plus two-jet production in pp collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset corresponding to an integrated luminosity of 36.1 fb−1. Cross sections a ... Full text Cite

Search for displaced vertices of oppositely charged leptons from decays of long-lived particles in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 10, 2020 A search for long-lived particles decaying into an oppositely charged lepton pair, μμ, ee, or eμ, is presented using 32.8fb−1 of pp collision data collected at s=13 TeV by the ATLAS detector at the LHC. Candidate leptons are required to form a v ... Full text Cite

Search for non-resonant Higgs boson pair production in the bbℓνℓν final state with the ATLAS detector in pp collisions at s=13 TeV

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 10, 2020 A search for non-resonant Higgs boson pair production, as predicted by the Standard Model, is presented, where one of the Higgs bosons decays via the H→bb channel and the other via one of the H→WW⁎/ZZ⁎/ττ channels. The analysis select ... Full text Cite

Search for the Higgs boson decays H → ee and H → eμ in pp collisions at s=13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 10, 2020 Searches for the Higgs boson decays H→ee and H→eμ are performed using data corresponding to an integrated luminosity of 139fb−1 collected with the ATLAS detector in pp collisions at s=13 TeV at the LHC. No significant signals are observed, in ag ... Full text Cite

Measurement of differential cross sections for single diffractive dissociation in √s = 8 TeV pp collisions using the ATLAS ALFA spectrometer

Journal article Journal of High Energy Physics · February 1, 2020 A dedicated sample of Large Hadron Collider proton-proton collision data at centre-of-mass energy s = 8 TeV is used to study inclusive single diffractive dissociation, pp → X p. The intact final-state proton is reconstructed in the ATLAS ALFA forward spect ... Full text Cite

Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in √s=13 TeV pp collisions using the ATLAS detector

Journal article European Physical Journal C · February 1, 2020 A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139 fb- 1 of proton–proton collisions recorded by the ATLAS detector at the Large Had ... Full text Cite

Measurement of the azimuthal anisotropy of charged-particle production in Xe+Xe collisions at sNN =5.44 TeV with the ATLAS detector

Journal article Physical Review C · February 1, 2020 This paper describes the measurements of flow harmonics v2-v6 in 3μb-1 of Xe+Xe collisions at sNN=5.44 TeV performed using the ATLAS detector at the Large Hadron Collider (LHC). Measurements of the centrality, multiplicity, and pT dependence of the vn obta ... Full text Cite

Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · February 2020 The elliptic flow of muons from the decay of charm and bottom hadrons is measured in pp collisions at sqrt[s]=13 TeV using a data sample with an integrated luminosity of 150 pb^{-1} recorded by the ATLAS detector at the LHC. The muons from heavy-flavor d ... Full text Cite

Search for direct stau production in events with two hadronic τ-leptons in s =13 TeV pp collisions with the ATLAS detector

Journal article Physical Review D · February 1, 2020 A search for the direct production of the supersymmetric partners of τ-leptons (staus) in final states with two hadronically decaying τ-leptons is presented. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of 139 fb-1 ... Full text Cite

Searches for lepton-flavour-violating decays of the Higgs boson in s=13 TeV pp collisions with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 10, 2020 This Letter presents direct searches for lepton flavour violation in Higgs boson decays, H→eτ and H→μτ, performed with the ATLAS detector at the LHC. The searches are based on a data sample of proton–proton collisions at a centre-of-mass energy s=13 TeV, c ... Full text Cite

Search for flavour-changing neutral currents in processes with one top quark and a photon using 81 fb−1 of pp collisions at s=13TeV with the ATLAS experiment

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 10, 2020 A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photon, and an up or charm quark is presented using 81 fb−1 of proton–proton collision data taken at a centre-of-mass energy of 13 TeV with the ATLAS ... Full text Cite

Combination of searches for Higgs boson pairs in pp collisions at s=13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 10, 2020 This letter presents a combination of searches for Higgs boson pair production using up to 36.1 fb−1 of proton–proton collision data at a centre-of-mass energy s=13 TeV recorded with the ATLAS detector at the LHC. The combination is performed us ... Full text Cite

Combined measurements of Higgs boson production and decay using up to 80 fb-1 of proton-proton collision data at √s =13 TeV collected with the ATLAS experiment

Journal article Physical Review D · January 3, 2020 Combined measurements of Higgs boson production cross sections and branching fractions are presented. The combination is based on the analyses of the Higgs boson decay modes H → γγ, ZZ∗, WW∗, τ τ, bb, μ μ, searches for decays into invisible final states, a ... Full text Cite

Fluctuations of anisotropic flow in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · January 1, 2020 Multi-particle azimuthal cumulants are measured as a function of centrality and transverse momentum using 470 μb−1 of Pb+Pb collisions at sNN = 5.02 TeV with the ATLAS detector at the LHC. These cumulants provide information on the event-by-even ... Full text Cite

Measurement of long-range two-particle azimuthal correlations in Z-boson tagged pp collisions at √s=8 and 13 TeV

Journal article European Physical Journal C · January 1, 2020 Results are presented from the measurement by ATLAS of long-range (| Δ η| > 2) dihadron angular correlations in s=8 and 13 TeV pp collisions containing a Z boson. The analysis is performed using 19.4 fb - 1 of s=8 TeV data recorded during Run 1 ... Full text Cite

Search for Magnetic Monopoles and Stable High-Electric-Charge Objects in 13 Tev Proton-Proton Collisions with the ATLAS Detector.

Journal article Physical review letters · January 2020 A search for magnetic monopoles and high-electric-charge objects is presented using 34.4 fb^{-1} of 13 TeV pp collision data collected by the ATLAS detector at the LHC during 2015 and 2016. The considered signature is based upon high ionization in the tra ... Full text Cite

Measurement of J/ψ production in association with a W ± boson with pp data at 8 TeV

Journal article Journal of High Energy Physics · January 1, 2020 A measurement of the production of a prompt J/ψ meson in association with a W± boson with W± → μν and J/ψ → μ+μ− is presented for J/ψ transverse momenta in the range 8.5–150 GeV and rapidity |yJ/ψ| < 2 ... Full text Cite

Performance of electron and photon triggers in ATLAS during LHC Run 2

Journal article European Physical Journal C · January 1, 2020 Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for the ATLAS experiment to record signals for a wide variety of physics: from Standard Model processes to searches for new phenomena in both proton–proton an ... Full text Cite

Transverse momentum and process dependent azimuthal anisotropies in √sNN=8.16 TeV p+Pb collisions with the ATLAS detector

Journal article European Physical Journal C · January 1, 2020 The azimuthal anisotropy of charged particles produced in sNN=8.16 TeV p+Pb collisions is measured with the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 165 nb - 1 that was collected in 2016. Azimuthal anisotropy ... Full text Cite

Electron and photon performance measurements with the ATLAS detector using the 2015-2017 LHC proton-proton collision data

Journal article Journal of Instrumentation · December 10, 2019 This paper describes the reconstruction of electrons and photons with the ATLAS detector, employed for measurements and searches exploiting the complete LHC Run 2 dataset. An improved energy clustering algorithm is introduced, and its implications for the ... Full text Cite

Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and pp collisions at sNN =5.02 TeV with the ATLAS detector

Journal article Physical Review C · December 2, 2019 Studies of the fragmentation of jets into charged particles in heavy-ion collisions can provide information about the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma. This paper presents a measu ... Full text Cite

Measurement of flow harmonics correlations with mean transverse momentum in lead–lead and proton–lead collisions at √sNN=5.02TeV with the ATLAS detector

Journal article European Physical Journal C · December 1, 2019 To assess the properties of the quark–gluon plasma formed in ultrarelativistic ion collisions, the ATLAS experiment at the LHC measures a correlation between the mean transverse momentum and the flow harmonics. The analysis uses data samples of lead–lead a ... Full text Cite

Measurement of KS0 and Λ production in tt¯ dileptonic events in pp collisions at √s= 7 TeV with the ATLAS detector

Journal article European Physical Journal C · December 1, 2019 Measurements of KS0 and Λ production in tt¯ final states have been performed. They are based on a data sample with integrated luminosity of 4.6 fb - 1 from proton–proton collisions at a centre-of-mass energy of 7 TeV, collected in 2011 with the ... Full text Cite

Search for bottom-squark pair production with the ATLAS detector in final states containing Higgs bosons, b-jets and missing transverse momentum

Journal article Journal of High Energy Physics · December 1, 2019 The result of a search for the pair production of the lightest supersymmetric partner of the bottom quark (b˜ 1) using 139 fb−1 of proton-proton data collected at s = 13 TeV by the ATLAS detector is reported. In the supersymmetric sce ... Full text Cite

Measurements of top-quark pair differential and double-differential cross-sections in the ℓ +jets channel with pp collisions at √s=13 TeV using the ATLAS detector

Journal article European Physical Journal C · December 1, 2019 Single- and double-differential cross-section measurements are presented for the production of top-quark pairs, in the lepton + jets channel at particle and parton level. Two topologies, resolved and boosted, are considered and the results are presented as ... Full text Cite

Search for a right-handed gauge boson decaying into a high-momentum heavy neutrino and a charged lepton in pp collisions with the ATLAS detector at s=13 TeV

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2019 A search for a right-handed gauge boson WR, decaying into a boosted right-handed heavy neutrino NR, in the framework of Left-Right Symmetric Models is presented. It is based on data from proton–proton collisions with a centre-of-mass ... Full text Cite

Evidence for the production of three massive vector bosons with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2019 A search for the production of three massive vector bosons in proton–proton collisions is performed using data at s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015–2017, corresponding to an integrated luminosity of 79 ... Full text Cite

Measurement of the production cross section for a Higgs boson in association with a vector boson in the H → WW⁎ → ℓνℓν channel in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 10, 2019 A measurement of the Higgs boson production cross sections via associated WH and ZH production using H→WW⁎→ℓνℓν decays, where ℓ stands for either an electron or a muon, is presented. Results for combined WH and ZH production are also presented. ... Full text Cite

Measurement of W± -boson and Z-boson production cross-sections in pp collisions at √s=2.76 TeV with the ATLAS detector

Journal article European Physical Journal C · November 1, 2019 The production cross-sections for W± and Z bosons are measured using ATLAS data corresponding to an integrated luminosity of 4.0 pb- 1 collected at a centre-of-mass energy s=2.76 TeV. The decay channels W→ ℓν and Z→ ℓℓ are used, where ... Full text Cite

Measurement of W± boson production in Pb+Pb collisions at √sNN=5.02Te with the ATLAS detector

Journal article European Physical Journal C · November 1, 2019 A measurement of W± boson production in Pb+Pb collisions at sNN=5.02Te is reported using data recorded by the ATLAS experiment at the LHC in 2015, corresponding to a total integrated luminosity of 0.49nb-1. The W± bosons are reconstru ... Full text Cite

ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV

Journal article European Physical Journal C · November 1, 2019 The algorithms used by the ATLAS Collaboration during Run 2 of the Large Hadron Collider to identify jets containing b-hadrons are presented. The performance of the algorithms is evaluated in the simulation and the efficiency with which these algorithms id ... Full text Cite

Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV

Journal article Journal of High Energy Physics · November 1, 2019 A determination of the top-quark mass is presented using 20.2 fb−1 of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of top-quark pair pro ... Full text Cite

Measurement of the inclusive cross-section for the production of jets in association with a Z boson in proton–proton collisions at 8 TeV using the ATLAS detector

Journal article European Physical Journal C · October 1, 2019 The inclusive cross-section for jet production in association with a Z boson decaying into an electron–positron pair is measured as a function of the transverse momentum and the absolute rapidity of jets using 19.9 fb- 1 of s=8 TeV proton–proton ... Full text Cite

Identification of boosted Higgs bosons decaying into b-quark pairs with the ATLAS detector at 13 TeV

Journal article European Physical Journal C · October 1, 2019 This paper describes a study of techniques for identifying Higgs bosons at high transverse momenta decaying into bottom-quark pairs, H→ bb¯ , for proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider at a centre-of-mass ... Full text Cite

Observation of Electroweak Production of a Same-Sign W Boson Pair in Association with Two Jets in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

Journal article Physical review letters · October 2019 This Letter presents the observation and measurement of electroweak production of a same-sign W boson pair in association with two jets using 36.1 fb^{-1} of proton-proton collision data recorded at a center-of-mass energy of sqrt[s]=13 TeV by the ATLAS ... Full text Cite

Measurement of fiducial and differential W+W- production cross-sections at √s=13 TeV with the ATLAS detector

Journal article European Physical Journal C · October 1, 2019 A measurement of fiducial and differential cross-sections for W+W- production in proton–proton collisions at s=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 36.1 ... Full text Cite

Measurement of the inclusive isolated-photon cross section in pp collisions at √s = 13 TeV using 36 fb−1 of ATLAS data

Journal article Journal of High Energy Physics · October 1, 2019 The differential cross section for isolated-photon production in pp collisions is measured at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC using an integrated luminosity of 36.1 fb−1. The differential cross section is pre ... Full text Cite

Measurement of ZZ production in the ℓℓνν final state with the ATLAS detector in pp collisions at √s = 13 TeV

Journal article Journal of High Energy Physics · October 1, 2019 This paper presents a measurement of ZZ production with the ATLAS detector at the Large Hadron Collider. The measurement is carried out in the final state with two charged leptons and two neutrinos, using data collected during 2015 and 2016 in pp collision ... Full text Cite

Search for heavy neutral leptons in decays of W bosons produced in 13 TeV pp collisions using prompt and displaced signatures with the ATLAS detector

Journal article Journal of High Energy Physics · October 1, 2019 The problems of neutrino masses, matter-antimatter asymmetry, and dark matter could be successfully addressed by postulating right-handed neutrinos with Majorana masses below the electroweak scale. In this work, leptonic decays of W bosons extracted from 3 ... Full text Cite

Search for a heavy charged boson in events with a charged lepton and missing transverse momentum from pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · September 23, 2019 A search for a heavy charged-boson resonance decaying into a charged lepton (electron or muon) and a neutrino is reported. A data sample of 139 fb-1 of proton-proton collisions at s=13 TeV collected with the ATLAS detector at the LHC during 2015-2018 is us ... Full text Cite

Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at s =13 TeV

Journal article Physical Review D · September 19, 2019 This paper presents a measurement of quantities related to the formation of jets from high-energy quarks and gluons (fragmentation). Jets with transverse momentum 100 GeV Full text Cite

Resolution of the ATLAS muon spectrometer monitored drift tubes in LHC Run 2

Journal article Journal of Instrumentation · September 16, 2019 The momentum measurement capability of the ATLAS muon spectrometer relies fundamentally on the intrinsic single-hit spatial resolution of the monitored drift tube precision tracking chambers. Optimal resolution is achieved with a dedicated calibration prog ... Full text Cite

Search for high-mass dilepton resonances using 139 fb−1 of pp collision data collected at √s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · September 10, 2019 A search for high-mass dielectron and dimuon resonances in the mass range of 250 GeV to 6 TeV is presented. The data were recorded by the ATLAS experiment in proton–proton collisions at a centre-of-mass energy of s=13 TeV during Run 2 of the Large Hadron C ... Full text Cite

Measurement of prompt photon production in sNN=8.16 TeV p + Pb collisions with ATLAS

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · September 10, 2019 The inclusive production rates of isolated, prompt photons in p+Pb collisions at sNN=8.16 TeV are studied with the ATLAS detector at the Large Hadron Collider using a dataset with an integrated luminosity of 165 nb−1 recorded in 2016. ... Full text Cite

Dijet azimuthal correlations and conditional yields in pp and p+Pb collisions at sNN=5.02TeV with the ATLAS detector

Journal article Physical Review C · September 6, 2019 This paper presents a measurement of forward-forward and forward-central dijet azimuthal angular correlations and conditional yields in proton-proton (pp) and proton-lead (p+Pb) collisions as a probe of the nuclear gluon density in regions where the fracti ... Full text Cite

Searches for scalar leptoquarks and differential cross-section measurements in dilepton–dijet events in proton–proton collisions at a centre-of-mass energy of √s = 13 TeV with the ATLAS experiment

Journal article European Physical Journal C · September 1, 2019 Searches for scalar leptoquarks pair-produced in proton–proton collisions at s=13 TeV at the Large Hadron Collider are performed by the ATLAS experiment. A data set corresponding to an integrated luminosity of 36.1 fb- 1 is used. Final states co ... Full text Cite

Measurement of the cross-section and charge asymmetry of W bosons produced in proton–proton collisions at √s=8TeV with the ATLAS detector

Journal article European Physical Journal C · September 1, 2019 This paper presents measurements of the W+→ μ+ν and W-→ μ-ν cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton–pro ... Full text Cite

Search for excited electrons singly produced in proton–proton collisions at √s=13Te with the ATLAS experiment at the LHC

Journal article European Physical Journal C · September 1, 2019 A search for excited electrons produced in pp collisions at s = 13 Te via a contact interaction qq¯ → ee∗ is presented. The search uses 36.1 fb- 1 of data collected in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider ... Full text Cite

Search for diboson resonances in hadronic final states in 139 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · September 1, 2019 Narrow resonances decaying into W W, W Z or ZZ boson pairs are searched for in 139 fb−1 of proton-proton collision data at a centre-of-mass energy of s = 13 TeV recorded with the ATLAS detector at the Large Hadron Collider from 2015 to 2018. The ... Full text Cite

Search for electroweak diboson production in association with a high-mass dijet system in semileptonic final states in pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · August 22, 2019 This paper reports on a search for electroweak diboson (WW/WZ/ZZ) production in association with a high-mass dijet system, using data from proton-proton collisions at a center-of-mass energy of s=13 TeV. The data, corresponding to an integrated luminosity ... Full text Cite

Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 10, 2019 A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8 fb−1 of LHC proton–proton collisions collected by the ATLA ... Full text Cite

Measurement of distributions sensitive to the underlying event in inclusive Z boson production in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article European Physical Journal C · August 1, 2019 This paper presents measurements of charged-particle distributions sensitive to the properties of the underlying event in events containing a Z boson decaying into a muon pair. The data were obtained using the ATLAS detector at the LHC in proton–proton col ... Full text Cite

Observation of Light-by-Light Scattering in Ultraperipheral Pb+Pb Collisions with the ATLAS Detector.

Journal article Physical review letters · August 2019 This Letter describes the observation of the light-by-light scattering process, γγ→γγ, in Pb+Pb collisions at sqrt[s_{NN}]=5.02 TeV. The analysis is conducted using a data sample corresponding to an integrated luminosity of 1.73 nb^{-1}, collected in Nov ... Full text Cite

Electron reconstruction and identification in the ATLAS experiment using the 2015 and 2016 LHC proton–proton collision data at √s=13 TeV

Journal article European Physical Journal C · August 1, 2019 Algorithms used for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC) are presented in this paper; these algorithms are used in ATLAS physics analyses that involve electrons in ... Full text Cite

Measurement of jet-substructure observables in top quark, W boson and light jet production in proton-proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · August 1, 2019 A measurement of jet substructure observables is presented using data collected in 2016 by the ATLAS experiment at the LHC with proton-proton collisions at s = 13 TeV. Large-radius jets groomed with the trimming and soft-drop algorithms are studied. Dedica ... Full text Cite

Erratum: Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb−1 of s = 13 TeV pp collision data with the ATLAS detector (Journal of High Energy Physics, (2017), 2017, 9, (84), 10.1007/JHEP09(2017)084)

Journal article Journal of High Energy Physics · August 1, 2019 One correction is made to the figure 4e of the paper. ... Full text Cite

Search for chargino and neutralino production in final states with a Higgs boson and missing transverse momentum at s =13 TeV with the ATLAS detector

Journal article Physical Review D · July 30, 2019 A search is conducted for the electroweak pair production of a chargino and a neutralino pp→χ1±χ20, where the chargino decays into the lightest neutralino and a W boson, χ1±→χ10W±, while the neutralino decays into the lightest neutralino and a Standard Mod ... Full text Cite

FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3

Journal article European Physical Journal Special Topics · July 1, 2019 In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider ... Full text Cite

HE-LHC: The High-Energy Large Hadron Collider: Future Circular Collider Conceptual Design Report Volume 4

Search for scalar resonances decaying into μ + μ − in events with and without b-tagged jets produced in proton-proton collisions at √s=13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · July 1, 2019 A search for a narrow scalar resonance decaying into an opposite-sign muon pair produced in events with and without b-tagged jets is presented in this paper. The search uses 36.1 fb−1 of s=13 TeV proton-proton collision data recorded by the ATLA ... Full text Cite

Comparison of Fragmentation Functions for Jets Dominated by Light Quarks and Gluons from pp and Pb+Pb Collisions in ATLAS.

Journal article Physical review letters · July 2019 Charged-particle fragmentation functions for jets azimuthally balanced by a high-transverse-momentum, prompt, isolated photon are measured in 25 pb^{-1} of pp and 0.49 nb^{-1} of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS d ... Full text Cite

Modelling radiation damage to pixel sensors in the ATLAS detector

Journal article Journal of Instrumentation · June 11, 2019 Silicon pixel detectors are at the core of the current and planned upgrade of the ATLAS experiment at the LHC. Given their close proximity to the interaction point, these detectors will be exposed to an unprecedented amount of radiation over their lifetime ... Full text Cite

Search for invisible Higgs boson decays in vector boson fusion at s=13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 10, 2019 We report a search for Higgs bosons that are produced via vector boson fusion and subsequently decay into invisible particles. The experimental signature is an energetic jet pair with invariant mass of O(1)TeV and O(100)GeV missing transverse momentum. The ... Full text Cite

Observation of electroweak W±Z boson pair production in association with two jets in pp collisions at s=13 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · June 10, 2019 An observation of electroweak W±Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of s=13 TeV are ... Full text Cite

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1

Journal article European Physical Journal C · June 1, 2019 We review the physics opportunities of the Future Circular Collider, covering its e+e-, pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and st ... Full text Cite

Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter

Journal article European Physical Journal C · June 1, 2019 This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis conside ... Full text Cite

FCC-ee: The Lepton Collider: Future Circular Collider Conceptual Design Report Volume 2

Journal article European Physical Journal Special Topics · June 1, 2019 In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This study covers a highest-luminosity high-energy lepton collider (FCC-e ... Full text Cite

Measurement of W±Z production cross sections and gauge boson polarisation in pp collisions at √s=13TeV with the ATLAS detector

Journal article European Physical Journal C · June 1, 2019 This paper presents measurements of W±Z production cross sections in pp collisions at a centre-of-mass energy of 13 TeV. The data were collected in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider, and correspond to an integrat ... Full text Cite

Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment.

Journal article Physical review letters · June 2019 Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for H→invisible decays where H is produced according to the standard model via vector boson fusion, Z(ℓℓ) ... Full text Cite

Searches for third-generation scalar leptoquarks in √s = 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · June 1, 2019 Limits are set on the pair production of scalar leptoquarks, where all possible decays of the leptoquark into a quark (t, b) and a lepton (τ, ν) of the third generation are considered. The limits are presented as a function of the leptoquark mass and the b ... Full text Cite

Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb-1 of proton-proton collision data at s =13 TeV

Journal article Physical Review D · May 28, 2019 A search for heavy charged long-lived particles is performed using a data sample of 36.1 fb-1 of proton-proton collisions at s=13 TeV collected by the ATLAS experiment at the Large Hadron Collider. The search is based on observables related to ionization e ... Full text Cite

Search for top-quark decays t → Hq with 36 fb−1 of pp collision data at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 21, 2019 A search for flavour-changing neutral current decays of a top quark into an up-type quark (q = u, c) and the Standard Model Higgs boson, t → Hq, is presented. The search is based on a dataset of pp collisions at s = 13 TeV recorded in 2015 and 2016 with th ... Full text Cite

Search for heavy particles decaying into a top-quark pair in the fully hadronic final state in pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · May 14, 2019 A search for new particles decaying into a pair of top quarks is performed using proton-proton collision data recorded with the ATLAS detector at the Large Hadron Collider at a center-of-mass energy of s=13 TeV corresponding to an integrated luminosity of ... Full text Cite

Studies of granularity of a hadronic calorimeter for tens-of-TeV jets at a 100 TeV pp collider

Journal article Journal of Instrumentation · May 8, 2019 Jet substructure variables for hadronic jets with transverse momenta in the range from 2.5 TeV to 20 TeV were studied using several designs for the spatial size of calorimeter cells. The studies used the full Geant4 simulation of calorimeter response combi ... Full text Cite

Erratum to: Measurements of W and Z boson production in pp collisions at s = 5.02 TeV with the ATLAS detector (The European Physical Journal C, (2019), 79, 2, (128), 10.1140/epjc/s10052-019-6622-x)

Journal article European Physical Journal C · May 1, 2019 It has been found that the theoretical predictions for W and Z boson cross sections, and for the W boson charge asymmetry, which are labelled as NNPDF3.1 [1] have in fact been calculated using the NNPDF3.0 PDF set [2] instead. ... Full text Cite

Performance of top-quark and W -boson tagging with ATLAS in Run 2 of the LHC

Journal article European Physical Journal C · May 1, 2019 The performance of identification algorithms (“taggers”) for hadronically decaying top quarks and W bosons in pp collisions at s = 13 TeV recorded by the ATLAS experiment at the Large Hadron Collider is presented. A set of techniques based on jet shape obs ... Full text Cite

Measurements of inclusive and differential fiducial cross-sections of tt¯ γ production in leptonic final states at √s=13TeV in ATLAS

Journal article European Physical Journal C · May 1, 2019 Inclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 36.1 fb-1, collected by the ATLAS detector at the LHC ... Full text Cite

Search for large missing transverse momentum in association with one top-quark in proton-proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2019 This paper describes a search for events with one top-quark and large missing transverse momentum in the final state. Data collected during 2015 and 2016 by the ATLAS experiment from 13 TeV proton–proton collisions at the LHC corresponding to an integrated ... Full text Cite

Combinations of single-top-quark production cross-section measurements and

Journal article Journal of High Energy Physics · May 1, 2019 This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at s = 7 and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb Full text Cite

Measurement of VH, H → b b ¯ production as a function of the vector-boson transverse momentum in 13 TeV pp collisions with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2019 Cross-sections of associated production of a Higgs boson decaying into bottomquark pairs and an electroweak gauge boson, W or Z, decaying into leptons are measured as a function of the gauge boson transverse momentum. The measurements are performed in kine ... Full text Cite

Search for single production of vector-like quarks decaying into Wb in pp collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2019 A search for singly produced vector-like quarks Q, where Q can be either a T quark with charge +2/3 or a Y quark with charge −4/3, is performed in proton–proton collision data at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity o ... Full text Cite

Search for Higgs boson pair production in the WW()WW() decay channel using ATLAS data recorded at √s = 13 TeV

Journal article Journal of High Energy Physics · May 1, 2019 A search for a pair of neutral, scalar bosons with each decaying into two W bosons is presented using 36.1 fb−1 of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider. T ... Full text Cite

Constraints on mediator-based dark matter and scalar dark energy models using √s = 13 TeV pp collision data collected by the ATLAS detector

Journal article Journal of High Energy Physics · May 1, 2019 Constraints on selected mediator-based dark matter models and a scalar dark energy model using up to 37 fb−1s = 13 TeV pp collision data collected by the ATLAS detector at the LHC during 2015-2016 are summarised in this paper. The results of exp ... Full text Cite

Measurement of the tt¯Z and tt¯W cross sections in proton-proton collisions at s=13 TeV with the ATLAS detector

Journal article Physical Review D · April 29, 2019 A measurement of the associated production of a top-quark pair (tt) with a vector boson (W, Z) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented, using 36.1 fb-1 of integrated luminosity collected by the ATLAS detector at the La ... Full text Cite

Cross-section measurements of the Higgs boson decaying into a pair of τ -leptons in proton-proton collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · April 10, 2019 A measurement of production cross sections of the Higgs boson in proton-proton collisions is presented in the H→ττ decay channel. The analysis is performed using 36.1 fb-1 of data recorded by the ATLAS experiment at the Large Hadron Collider at a center-of ... Full text Cite

Measurement of the top quark mass in the tt¯ → lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results

Journal article European Physical Journal C · April 1, 2019 The top quark mass is measured using a template method in the tt¯ → lepton + jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of s=8 TeV and correspond to an integrat ... Full text Cite

Measurements of inclusive and differential fiducial cross-sections of tt¯ production with additional heavy-flavour jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2019 This paper presents measurements of tt¯ production in association with additional b-jets in pp collisions at the LHC at a centre-of-mass energy of 13 TeV. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 36.1 fb< ... Full text Cite

Measurement of the four-lepton invariant mass spectrum in 13 TeV proton-proton collisions with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2019 A measurement of the four-lepton invariant mass spectrum is made with the ATLAS detector, using an integrated luminosity of 36.1 fb−1 of proton-proton collisions at s = 13 TeV delivered by the Large Hadron Collider. The differential cross-sectio ... Full text Cite

Measurement of the ratio of cross sections for inclusive isolated-photon production in pp collisions at √s = 13 and 8 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2019 The ratio of the cross sections for inclusive isolated-photon production in pp collisions at centre-of-mass energies of 13 and 8 TeV is measured using the ATLAS detector at the LHC. The integrated luminosities of the 13 TeV and 8 TeV datasets are 3.2 fb Full text Cite

Study of the rare decays of Bs0 and B 0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2019 A study of the decays Bs0 → μ+μ− and B0 → μ+μ− has been performed using 26.3 fb−1 of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in 2015 a ... Full text Cite

Search for Higgs boson pair production in the bb¯ WW* decay mode at √s = 13 TeV with the ATLAS detector

Journal article Journal of High Energy Physics · April 1, 2019 A search for Higgs boson pair production in the bb¯ WW* decay mode is performed in the bb¯ ℓνqq final state using 36.1 fb−1 of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the L ... Full text Cite

Search for the Production of a Long-Lived Neutral Particle Decaying within the ATLAS Hadronic Calorimeter in Association with a Z Boson from pp Collisions at sqrt[s]=13 TeV.

Journal article Physical review letters · April 2019 This Letter presents a search for the production of a long-lived neutral particle (Z_{d}) decaying within the ATLAS hadronic calorimeter, in association with a standard model (SM) Z boson produced via an intermediate scalar boson, where Z→ℓ^{+}ℓ^{-} (ℓ=e, ... Full text Cite

Electron and photon energy calibration with the ATLAS detector using 2015-2016 LHC proton-proton collision data

Journal article Journal of Instrumentation · March 18, 2019 This paper presents the electron and photon energy calibration obtained with the ATLAS detector using about 36 fb-1 of LHC proton-proton collision data recorded at s=13 TeV in 2015 and 2016. The different calibration steps applied to the data an ... Full text Cite

Measurement of the nuclear modification factor for inclusive jets in Pb+Pb collisions at √sNN=5.02 TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · March 10, 2019 Measurements of the yield and nuclear modification factor, RAA, for inclusive jet production are performed using 0.49 nb−1 of Pb+Pb data at sNN=5.02TeV and 25 pb−1 of Pb+Pb data at s=5.02TeV with the ATLAS detect ... Full text Cite

Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · March 10, 2019 A search for decays of the Higgs boson into a pair of new spin-zero particles, H→aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at s=13 TeV recorded by th ... Full text Cite

Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run 2 data collected in 2015 and 2016

Journal article European Physical Journal C · March 1, 2019 The efficiency of the photon identification criteria in the ATLAS detector is measured using 36.1fb1 to 36.7fb1 of pp collision data at s=13 TeV collected in 2015 and 2016. The efficiencies are measured separately for converted and unconverted isolated pho ... Full text Cite

Search for Higgs-like particles produced in association with bottom quarks in proton-antiproton collisions

Journal article Physical Review D · March 1, 2019 We report on a search for a spin-zero non-standard model particle in proton-antiproton collisions collected by the Collider Detector at Fermilab at a center-of-mass-energy of 1.96 TeV. This particle, the φ boson, is expected to decay into a bottom-antibott ... Full text Cite

Search for long-lived particles produced in pp collisions at s =13 TeV that decay into displaced hadronic jets in the ATLAS muon spectrometer

Journal article Physical Review D · March 1, 2019 A search for the decay of neutral, weakly interacting, long-lived particles using data collected by the ATLAS detector at the LHC is presented. The analysis in this paper uses 36.1 fb-1 of proton-proton collision data at s=13 TeV recorded in 2015-2016. The ... Full text Cite

Properties of g →b b at small opening angles in pp collisions with the ATLAS detector at √s=13 TeV

Journal article Physical Review D · March 1, 2019 The fragmentation of high-energy gluons at small opening angles is largely unconstrained by present measurements. Gluon splitting to b-quark pairs is a unique probe into the properties of gluon fragmentation because identified b-tagged jets provide a proxy ... Full text Cite

Search for heavy long-lived multicharged particles in proton-proton collisions at s =13 TeV using the ATLAS detector

Journal article Physical Review D · March 1, 2019 A search for heavy long-lived multicharged particles is performed using the ATLAS detector at the LHC. Data with an integrated luminosity of 36.1 fb-1 collected in 2015 and 2016 from proton-proton collisions at s=13 TeV are examined. Particles producing an ... Full text Cite

Search for four-top-quark production in the single-lepton and opposite-sign dilepton final states in pp collisions at s =13 TeV with the ATLAS detector

Journal article Physical Review D · March 1, 2019 A search for four-top-quark production, tttt, is presented. It is based on proton-proton collision data with a center-of-mass energy s=13 TeV collected by the ATLAS detector at the Large Hadron Collider during the years 2015 and 2016, corresponding to an i ... Full text Cite

Measurement of photon–jet transverse momentum correlations in 5.02 TeV Pb + Pb and pp collisions with ATLAS

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 10, 2019 Jets created in association with a photon can be used as a calibrated probe to study energy loss in the medium created in nuclear collisions. Measurements of the transverse momentum balance between isolated photons and inclusive jets are presented using in ... Full text Cite

Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 10, 2019 Correlations of two flow harmonics vn and vm via three- and four-particle cumulants are measured in 13 TeV pp, 5.02 TeV p+Pb, and 2.76 TeV peripheral Pb+Pb collisions with the ATLAS detector at the LHC. The goal is to understand the m ... Full text Cite

Measurements of gluon–gluon fusion and vector-boson fusion Higgs boson production cross-sections in the H → WW⁎ → eνμν decay channel in pp collisions at √s=13TeV with the ATLAS detector

Journal article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 10, 2019 Higgs boson production cross-sections in proton–proton collisions are measured in the H→WW⁎→eνμν decay channel. The proton–proton collision data were produced at the Large Hadron Collider at a centre-of-mass energy of 13 TeV and recorded by the ... Full text Cite

A strategy for a general search for new phenomena using data-derived signal regions and its application within the ATLAS experiment

Journal article European Physical Journal C · February 1, 2019 This paper describes a strategy for a general search used by the ATLAS Collaboration to find potential indications of new physics. Events are classified according to their final state into many event classes. For each event class an automated search algori ... Full text Cite

In situ calibration of large-radius jet energy and mass in 13 TeV proton–proton collisions with the ATLAS detector

Journal article European Physical Journal C · February 1, 2019 The response of the ATLAS detector to large-radius jets is measured in situ using 36.2 fb- 1 of s=13 TeV proton–proton collisions provided by the LHC and recorded by the ATLAS experiment during 2015 and 2016. The jet energy scale is measured in ... Full text Cite

Measurements of W and Z boson production in pp collisions at √s=5.02 TeV with the ATLAS detector

Journal article European Physical Journal C · February 1, 2019 Measurements of fiducial integrated and differential cross sections for inclusive W+, W- and Z boson production are reported. They are based on 25.0±0.5pb-1 of pp collision data at s=5.02 TeV collected with the ATLAS detector at the C ... Full text Cite