Observation of electroweak W ± Z boson pair production in association with two jets in pp collisions at √s = 13 TeV with the ATLAS detector

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Issue Date
2019-06-10Author
Aaboud, M.
Rogan, Christopher
The ATLAS Collaboration
Publisher
Elsevier
Type
Article
Article Version
Scholarly/refereed, publisher version
Rights
© 2019 The Author(s). Published by Elsevier B.V.
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An observation of electroweak W ± Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of √s = 13 TeV are used, corresponding to an integrated luminosity of 36.1 fb−1. Events containing three identified leptons, either electrons or muons, and two jets are selected. The electroweak production of W ± Z bosons in association with two jets is measured with an observed significance of 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σW Zjj−EW = 0.57 +0.14−0.13 (stat.) +0.07−0.06 (syst.) fb. Total and differential fiducial cross-sections of the sum of W ± Zjj electroweak and strong productions for several kinematic observables are also measured.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
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Citation
M. Aaboud et al., "Observation of electroweak W±Z boson pair production in association with two jets in pp collisions at s=13 TeV with the ATLAS detector", Physics Letters B, Volume 793, 2019, Pages 469-492, ISSN 0370-2693, https://doi.org/10.1016/j.physletb.2019.05.012.
(http://www.sciencedirect.com/science/article/pii/S0370269319303211)
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