Journal article
Measurement of the W±Z boson pair-production cross section in pp collisions at √s=13 TeV with the ATLAS detector
Physics letters. B, Vol.762, pp.1-22
2016
DOI: 10.1016/j.physletb.2016.08.052
Abstract
The production of W±Z events in proton–proton collisions at a centre-of-mass energy of 13 TeV is measured with the ATLAS detector at the LHC. The collected data correspond to an integrated luminosity of 3.2 fb−1. The W±Z candidates are reconstructed using leptonic decays of the gauge bosons into electrons or muons. The measured inclusive cross section in the detector fiducial region for leptonic decay modes is σfid.W±Z→ℓʹ νℓℓ=63.2 ±3.2 (stat.)±2.6 (sys.)±1.5 (lumi.)fb. In comparison, the next-to-leading-order Standard Model prediction is 53.4+3.6−2.8fb. The extrapolation of the measurement from the fiducial to the total phase space yields σtot.W±Z=50.6 ±2.6 (stat.)±2.0 (sys.)±0.9 (th.)±1.2 (lumi.)pb, in agreement with a recent next-to-next-to-leading-order calculation of 48.2+1.1−1.0pb. The cross section as a function of jet multiplicity is also measured, together with the charge-dependent W+Z and W−Z cross sections and their ratio. © 2016 The Author(s).
Details
- Title: Subtitle
- Measurement of the W±Z boson pair-production cross section in pp collisions at √s=13 TeV with the ATLAS detector
- Creators
- M Aaboud - Premier UniversityG Aad - Aix-Marseille UniversitéB Abbott - University of OklahomaJ Abdallah - University of IowaO Abdinov - Azerbaijan National Academy of SciencesB Abeloos - Université Paris-SaclayTorsten Åkesson - Particle PhysicsSimona Bocchetta - Lund UniversityLENE Bryngemark - Lund UniversityCaterina Doglioni - Particle PhysicsAnders Floderus - Particle PhysicsVincent Hedberg - Particle PhysicsGöran Jarlskog - Particle PhysicsElse Lytken - Particle PhysicsUlf Mjörnmark - Particle PhysicsOxana Smirnova - Particle PhysicsOleksandr Viazlo - Particle PhysicsATLAS Collaboration
- Contributors
- U Mallik (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.762, pp.1-22
- DOI
- 10.1016/j.physletb.2016.08.052
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier B.V
- Grant note
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- Language
- English
- Date published
- 2016
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199675902771
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