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

G Aad; B Abbott; J Abdallah; O Abdinov; R Aben; M Abolins; Torsten Åkesson; Simona Bocchetta; LENE Bryngemark; Caterina Doglioni; Anders Floderus; Anthony Hawkins; Vincent Hedberg; Jenny Ivarsson; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

doi:10.1007/JHEP09(2016)029

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

G Aad, B Abbott, J Abdallah, O Abdinov, R Aben, M Abolins, Torsten Åkesson, Simona Bocchetta, LENE Bryngemark, Caterina Doglioni, …

The journal of high energy physics, Vol.2016(9), 29

2016

DOI: 10.1007/JHEP09(2016)029

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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.] © 2016, The Author(s).

Natural Sciences

Physical Sciences

Electroweak interaction

Fysik

Hadron-Hadron scattering (experiments)

Naturvetenskap

QCD

Subatomic Physics

Subatomär fysik

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Title: Subtitle: Measurement of total and differential W + W − production cross sections in proton-proton collisions at √s=8 TeV with the ATLAS detector and limits on anomalous triple-gauge-boson couplings
Creators: G Aad - Aix-Marseille Université
B Abbott - University of Oklahoma
J Abdallah - Academia Sinica
O Abdinov - Azerbaijan National Academy of Sciences
R Aben - University of Amsterdam
M Abolins - Michigan State University
Torsten Åkesson - Particle Physics
Simona Bocchetta - Lund University
LENE Bryngemark - Lund University
Caterina Doglioni - Particle Physics
Anders Floderus - Particle Physics
Anthony Hawkins - Particle Physics
Vincent Hedberg - Particle Physics
Jenny Ivarsson - Particle Physics
Göran Jarlskog - Particle Physics
Else Lytken - Particle Physics
Ulf Mjörnmark - Particle Physics
Oxana Smirnova - Particle Physics
Oleksandr Viazlo - Particle Physics
ATLAS Collaboration
Contributors: U Mallik (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: The journal of high energy physics, Vol.2016(9), 29
DOI: 10.1007/JHEP09(2016)029
ISSN: 1029-8479
eISSN: 1029-8479
Language: English
Date published: 2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984199783002771

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