Aad, G;
Abbott, B;
Abdallah, J;
Abdinov, O;
Abeloos, B;
Aben, R;
AbouZeid, OS;
... Zwalinski, L; + view all
(2016)
Measurement of W ± and Z-boson production cross sections in pp collisions at √s = 13 TeV with the ATLAS detector.
Physics Letters B
, 759
pp. 601-621.
10.1016/j.physletb.2016.06.023.
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Abstract
Measurements of the W ± → ±ν and Z → +− production cross sections (where ± = 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 σtot W + = 11.83±0.02 (stat)±0.32 (sys)±0.25 (lumi) nb and σtot 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 < 116 GeV, is σtot 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 W + /σ fid W − = 1.295±0.003 (stat)±0.010 (sys) and σ fid W ± /σ fid 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. © 20
| Type: | Article |
|---|---|
| Title: | Measurement of W ± and Z-boson production cross sections in pp collisions at √s = 13 TeV with the ATLAS detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.physletb.2016.06.023 |
| Publisher version: | http://doi.org/10.1016/j.physletb.2016.06.023 |
| Language: | English |
| Additional information: | © 2016 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, Physics, Nuclear, Physics, Particles & Fields, Physics, PARTON DISTRIBUTIONS, DECAY, LHC, QCD |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1477596 |
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