Measurement of total and differential W <sup>+</sup> W <sup>−</sup> production cross sections in proton-proton collisions at √s=8 TeV with the ATLAS detector and limits on anomalous triple-gauge-boson couplings

Abstract

The production of W boson pairs in proton-proton collisions at s=8 TeV is studied using data corresponding to 20.3 fb−1 of integrated luminosity collected by the ATLAS detector during 2012 at the CERN Large Hadron Collider. The W bosons are reconstructed using their leptonic decays into electrons or muons and neutrinos. Events with reconstructed jets are not included in the candidate event sample. A total of 6636 WW candidate events are observed. Measurements are performed in fiducial regions closely approximating the detector acceptance. The integrated measurement is corrected for all acceptance effects and for the W branching fractions to leptons in order to obtain the total WW production cross section, which is found to be 71.1 ± 1.1(stat) − 5.0+ 5.7(syst) ± 1.4(lumi) pb. This agrees with the next-to-next-to-leading-order Standard Model prediction of 63. 2− 1.4+ 1.6(scale) ± 1.2(PDF) pb. Fiducial differential cross sections are measured as a function of each of six kinematic variables. The distribution of the transverse momentum of the leading lepton is used to set limits on anomalous triple-gauge-boson couplings.[Figure not available: see fulltext.]

Metadata

Item Type:	Article
Authors/Creators:	The, ATLASC Aad, G Abbott, B Abdallah, J Abdinov, O Aben, R Abolins, M AbouZeid, OS Abramowicz, H Abreu, H Abreu, R Abulaiti, Y Acharya, BS Adamczyk, L Adams, DL Adelman, J Adomeit, S Adye, T Affolder, AA Agatonovic-Jovin, T Agricola, J Aguilar-Saavedra, JA Ahlen, SP Ahmadov, F Aielli, G Akerstedt, H Åkesson, TPA Akimov, AV Alberghi, GL Albert, J Albrand, S Alconada Verzini, MJ Aleksa, M Aleksandrov, IN Alexa, C Alexander, G Alexopoulos, T Alhroob, M Alimonti, G Alio, L Alison, J Alkire, SP Allbrooke, BMM Allport, PP Aloisio, A Alonso, A Alonso, F Alpigiani, C Alvarez Gonzalez, B Álvarez Piqueras, D Alviggi, MG Amadio, BT Amako, K Amaral Coutinho, Y Amelung, C Amidei, D Amor Dos Santos, SP Amorim, A Amoroso, S Amram, N Amundsen, G Anastopoulos, C Ancu, LS Andari, N Andeen, T Anders, CF Anders, G Anders, JK Anderson, KJ Andreazza, A Andrei, V Angelidakis, S Angelozzi, I Anger, P Angerami, A Anghinolfi, F Anisenkov, AV Anjos, N Annovi, A Antonelli, M
Copyright, Publisher and Additional Information:	© 2016 CERN. © Year The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Dates:	Accepted: 29 August 2016 Published (online): 6 September 2016
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	28 Sep 2016 09:45
Last Modified:	06 May 2020 10:36
Published Version:	http://dx.doi.org/10.1007/JHEP09(2016)029
Status:	Published
Publisher:	Springer Verlag
Refereed:	Yes
Identification Number:	10.1007/JHEP09(2016)029
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:105232

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Measurement of total and differential W <sup>+</sup> W <sup>−</sup> production cross sections in proton-proton collisions at √s=8 TeV with the ATLAS detector and limits on anomalous triple-gauge-boson couplings

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