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Measurement of the Z(→ ℓ + ℓ −)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector

Publication ,  Journal Article
Aad, G; Abbott, B; Abbott, DC; Abed Abud, A; Abeling, K; Abhayasinghe, DK; Abidi, SH; AbouZeid, OS; Abraham, NL; Abramowicz, H; Abreu, H ...
Published in: Journal of High Energy Physics
March 1, 2020
Published version (DOI)

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 detector at the LHC from 2015 to 2018. The production cross-section for the process pp → ℓ+ℓ−γ + X (ℓ = e, μ) is measured within a fiducial phase-space region defined by kinematic requirements on the photon and the leptons, and by isolation requirements on the photon. An experimental precision of 2.9% is achieved for the fiducial cross-section. Differential cross-sections are measured as a function of each of six kinematic variables characterising the ℓ+ℓ−γ system. The data are compared with theoretical predictions based on next-to-leading-order and next-to-next-to-leading-order perturbative QCD calculations. The impact of next-to-leading-order electroweak corrections is also considered. [Figure not available: see fulltext.].

Duke Scholars

Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics
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Published In

Journal of High Energy Physics

DOI

10.1007/JHEP03(2020)054

EISSN

1029-8479

ISSN

1126-6708

Publication Date

March 1, 2020

Volume

2020

Issue

3

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics
 

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MLA
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Aad, G., Abbott, B., Abbott, D. C., Abed Abud, A., Abeling, K., Abhayasinghe, D. K., … Araujo Ferraz, V. (2020). Measurement of the Z(→ ℓ + ℓ −)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2020(3). https://doi.org/10.1007/JHEP03(2020)054
Aad, G., B. Abbott, D. C. Abbott, A. Abed Abud, K. Abeling, D. K. Abhayasinghe, S. H. Abidi, et al. “Measurement of the Z(→ ℓ + ℓ −)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector.” Journal of High Energy Physics 2020, no. 3 (March 1, 2020). https://doi.org/10.1007/JHEP03(2020)054.
Aad G, Abbott B, Abbott DC, Abed Abud A, Abeling K, Abhayasinghe DK, et al. Measurement of the Z(→ ℓ + ℓ −)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector. Journal of High Energy Physics. 2020 Mar 1;2020(3).
Aad, G., et al. “Measurement of the Z(→ ℓ + ℓ −)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector.” Journal of High Energy Physics, vol. 2020, no. 3, Mar. 2020. Scopus, doi:10.1007/JHEP03(2020)054.
Aad G, Abbott B, Abbott DC, Abed Abud A, Abeling K, Abhayasinghe DK, Abidi SH, AbouZeid OS, Abraham NL, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Achkar B, Adachi S, Adam L, Adam Bourdarios C, Adamczyk L, Adamek L, Adelman J, Adersberger M, Adiguzel A, Adorni S, Adye T, Affolder AA, Afik Y, Agapopoulou C, Agaras MN, Aggarwal A, Agheorghiesei C, Aguilar-Saavedra JA, Ahmadov F, Ahmed WS, Ai X, Aielli G, Akatsuka S, Åkesson TPA, Akilli E, Akimov AV, Al Khoury K, Alberghi GL, Albert J, Alconada Verzini MJ, Alderweireldt S, Aleksa M, Aleksandrov IN, Alexa C, Alexandre D, Alexopoulos T, Alfonsi A, Alfonsi F, Alhroob M, Ali B, Alimonti G, Alison J, Alkire SP, Allaire C, Allbrooke BMM, Allen BW, Allport PP, Aloisio A, Alonso A, Alonso F, Alpigiani C, Alshehri AA, Alvarez Estevez M, Álvarez Piqueras D, Alviggi MG, Amaral Coutinho Y, Ambler A, Ambroz L, Amelung C, Amidei D, Amor Dos Santos SP, Amoroso S, Amrouche CS, An F, Anastopoulos C, Andari N, Andeen T, Anders CF, Anders JK, Andreazza A, Andrei V, Anelli CR, Angelidakis S, Angerami A, Anisenkov AV, Annovi A, Antel C, Anthony MT, Antonelli M, Antrim DJA, Anulli F, Aoki M, Aparisi Pozo JA, Aperio Bella L, Arabidze G, Araque JP, Araujo Ferraz V. Measurement of the Z(→ ℓ + ℓ −)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector. Journal of High Energy Physics. 2020 Mar 1;2020(3).
Journal cover image

Published In

Journal of High Energy Physics

DOI

10.1007/JHEP03(2020)054

EISSN

1029-8479

ISSN

1126-6708

Publication Date

March 1, 2020

Volume

2020

Issue

3

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics