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Title: Measurement of W ± and Z-boson production cross sections in pp collisions at s = 13  TeV with the ATLAS detector

Abstract

Measurements of the W ± → ℓ ±ν and Z → ℓ +- production cross sections (where ℓ ± = e ±, μ ± ) in proton–proton collisions at √s = 13 TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb -1. The total inclusive W ±-boson production cross sections times the single-lepton-flavour branching ratios are σ$$tot\atop{W+}$$ =11.83 ± 0.02 (stat)±0.32 (sys)±0.25 (lumi) nb and σ$$tot\atop{W-}$$=8.79±0.02 (stat)±0.24 (sys)±0.18 (lumi) nb for W + and W -, respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66 < m ℓℓ <116 GeV, is σ$$tot\atop{Z}$$ = 1.981±0.007(stat)±0.038(sys)±0.042(lumi) nb. The W +, W , and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σ$$fid\atop{W+}$$/$$fid\atop{W-}$$ = 1.295 ±0.003(stat)±0.010(sys)and σ$$fid\atop{W±}$$/σ$$fid\atop{Z}$$ = 10.31±0.04(stat)±0.20(sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements.

Authors:
 [1]
  1. CPPM, Aix-Marseille Univ. and CNRS/IN2P3, Marseille (France). et al.
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1257865
Grant/Contract Number:
AC02-76SF00515; AC02-05CH11231
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 759; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Aad, G. Measurement of W± and Z-boson production cross sections in pp collisions at s=13 TeV with the ATLAS detector. United States: N. p., 2016. Web. doi:10.1016/j.physletb.2016.06.023.
Aad, G. Measurement of W± and Z-boson production cross sections in pp collisions at s=13 TeV with the ATLAS detector. United States. doi:10.1016/j.physletb.2016.06.023.
Aad, G. 2016. "Measurement of W± and Z-boson production cross sections in pp collisions at s=13 TeV with the ATLAS detector". United States. doi:10.1016/j.physletb.2016.06.023.
@article{osti_1257865,
title = {Measurement of W± and Z-boson production cross sections in pp collisions at s=13 TeV with the ATLAS detector},
author = {Aad, G.},
abstractNote = {Measurements of the W± → ℓ±ν and Z → ℓ+ℓ- production cross sections (where ℓ± = e±, μ± ) in proton–proton collisions at √s = 13 TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb-1. The total inclusive W±-boson production cross sections times the single-lepton-flavour branching ratios are σ$tot\atop{W+}$ =11.83 ± 0.02 (stat)±0.32 (sys)±0.25 (lumi) nb and σ$tot\atop{W-}$=8.79±0.02 (stat)±0.24 (sys)±0.18 (lumi) nb for W+ and W-, respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66 < mℓℓ <116 GeV, is σ$tot\atop{Z}$ = 1.981±0.007(stat)±0.038(sys)±0.042(lumi) nb. The W+, W₋, and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σ$fid\atop{W+}$/$fid\atop{W-}$ = 1.295 ±0.003(stat)±0.010(sys)and σ$fid\atop{W±}$/σ$fid\atop{Z}$ = 10.31±0.04(stat)±0.20(sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements.},
doi = {10.1016/j.physletb.2016.06.023},
journal = {Physics Letters. Section B},
number = C,
volume = 759,
place = {United States},
year = 2016,
month = 6
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2016.06.023

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Cited by: 24works
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