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https://hdl.handle.net/2440/129227
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Type: | Journal article |
Title: | Measurement of the W±Z boson pair-production cross section in pp collisions at √s = 13 TeV with the ATLAS detector |
Other Titles: | Measurement of the W(±)Z boson pair-production cross section in pp collisions at root s = 13 TeV with the ATLAS detector |
Author: | Aaboud, M. Aad, G. Abbott, B. Abdallah, J. Abdinov, O. Abeloos, B. Aben, R. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abreu, R. Abulaiti, Y. Acharya, B.S. Adamczyk, L. Adams, D.L. Adelman, J. Adomeit, S. Adye, T. Affolder, A.A. et al. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2016; 762:1-22 |
Publisher: | Elsevier |
Issue Date: | 2016 |
ISSN: | 0370-2693 1873-2445 |
Statement of Responsibility: | M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos ... et al. |
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 σ fid. W ± Z→l′νll = 63.2 ± 3.2 (stat.) ± 2.6 (sys.) ± 1.5 (lumi.) fb. In comparison, the next-toleading-order Standard Model prediction is 53.4+3.6 −2.8 fb. 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 −1.0 pb. 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. |
Rights: | © 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/). Funded by SCOAP3. |
DOI: | 10.1016/j.physletb.2016.08.052 |
Published version: | http://dx.doi.org/10.1016/j.physletb.2016.08.052 |
Appears in Collections: | Aurora harvest 4 Physics publications |
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