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

Aad, G ; Abbott, B. ; Abdallah, J ; Abdinov, O ; Abeloos, B ; Aben, R ; Åkesson, Torsten LU orcid ; Bocchetta, Simona LU ; BRYNGEMARK, LENE LU and Doglioni, Caterina LU , et al. (2016) In Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 759. p.601-621
Abstract
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 σW+ tot=11.83±0.02 (stat)±0.32 (sys)±0.25 (lumi) nb and σW− tot=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 σZ tot=1.981±0.007 (stat)±0.038 (sys)±0.042 (lumi) nb. The W+, W−, and Z-boson production... (More)
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 σW+ tot=11.83±0.02 (stat)±0.32 (sys)±0.25 (lumi) nb and σW− tot=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 σZ tot=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 σW+ fid/σW− fid=1.295±0.003 (stat)±0.010 (sys) and σW± fid/σZ fid=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. © 2016 The Author(s) (Less)
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type
Contribution to journal
publication status
published
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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
759
pages
21 pages
publisher
Elsevier
external identifiers
  • scopus:85042485876
ISSN
0370-2693
DOI
10.1016/j.physletb.2016.06.023
language
English
LU publication?
yes
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Cited By :10 Export Date: 6 July 2017
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f848e29c-2859-4c1f-8124-64c396480a6f
date added to LUP
2017-07-06 07:48:03
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2023-04-07 18:56:11
@article{f848e29c-2859-4c1f-8124-64c396480a6f,
  abstract     = {{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 σW+ tot=11.83±0.02 (stat)±0.32 (sys)±0.25 (lumi) nb and σW− tot=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&lt;mℓℓ&lt;116 GeV, is σZ tot=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 σW+ fid/σW− fid=1.295±0.003 (stat)±0.010 (sys) and σW± fid/σZ fid=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. © 2016 The Author(s)}},
  author       = {{Aad, G and Abbott, B. and Abdallah, J and Abdinov, O and Abeloos, B and Aben, R and Åkesson, Torsten and Bocchetta, Simona and BRYNGEMARK, LENE and Doglioni, Caterina and Floderus, Anders and Hedberg, Vincent and Jarlskog, Göran and Lytken, Else and Mjörnmark, Ulf and Smirnova, Oxana and Viazlo, Oleksandr}},
  issn         = {{0370-2693}},
  language     = {{eng}},
  pages        = {{601--621}},
  publisher    = {{Elsevier}},
  series       = {{Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}},
  title        = {{Measurement of W± and Z-boson production cross sections in pp collisions at s=13 TeV with the ATLAS detector}},
  url          = {{http://dx.doi.org/10.1016/j.physletb.2016.06.023}},
  doi          = {{10.1016/j.physletb.2016.06.023}},
  volume       = {{759}},
  year         = {{2016}},
}