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Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in collisions at with the ATLAS detector

Publication ,  Journal Article
Aad, G; Aakvaag, E; Abbott, B; Abdelhameed, S; Abeling, K; Abicht, NJ; Abidi, SH; Aboelela, M; Aboulhorma, A; Abramowicz, H; Abulaiti, Y ...
Published in: 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 of proton-proton () collisions at a center-of-mass energy of recorded by the ATLAS detector at the Large Hadron Collider. This paper focuses on a supersymmetric scenario that is motivated by the muon anomalous magnetic moment observation, dark-mattter relic density abundance, and electroweak naturalness. A mass spectrum involving light Higgsinos and heavier sleptons with a bino at intermediate mass is targeted. No significant deviation from the Standard Model expectation is observed. This search enables us to place stringent constraints on this model, excluding at the 95% confidence level charged slepton and sneutrino masses up to 450 GeV when assuming a lightest neutralino mass of 100 GeV and mass-degenerate selectrons, smuons and sneutrinos.

Duke Scholars

Published In

Physical Review D

DOI

EISSN

2470-0029

ISSN

2470-0010

Publication Date

July 8, 2025

Volume

112

Issue

1

Publisher

American Physical Society (APS)
 

Citation

APA
Chicago
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Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N. J., … Coelli, S. (2025). Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in pp collisions at s=13TeV with the ATLAS detector. Physical Review D, 112(1). https://doi.org/10.1103/6gy3-cb4t
Aad, G., E. Aakvaag, B. Abbott, S. Abdelhameed, K. Abeling, N. J. Abicht, S. H. Abidi, et al. “Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in pp collisions at s=13TeV with the ATLAS detector.” Physical Review D 112, no. 1 (July 8, 2025). https://doi.org/10.1103/6gy3-cb4t.
Aad, G., et al. “Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in pp collisions at s=13TeV with the ATLAS detector.” Physical Review D, vol. 112, no. 1, American Physical Society (APS), July 2025. Crossref, doi:10.1103/6gy3-cb4t.
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Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in pp collisions at s=13TeV with the ATLAS detector. Physical Review D. American Physical Society (APS); 2025 Jul 8;112(1).

Published In

Physical Review D

DOI

EISSN

2470-0029

ISSN

2470-0010

Publication Date

July 8, 2025

Volume

112

Issue

1

Publisher

American Physical Society (APS)