Measurement of total and difierential 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

The production of W boson pairs in proton-proton collisions at √s = 8TeV 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...

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Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Exactas
Física
electroweak interaction
hadron-hadron scattering
quantum chromodynamics
w boson
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79236
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-79236
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
electroweak interaction
hadron-hadron scattering
quantum chromodynamics
w boson
spellingShingle Ciencias Exactas
Física
electroweak interaction
hadron-hadron scattering
quantum chromodynamics
w boson
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of total and difierential 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
topic_facet Ciencias Exactas
Física
electroweak interaction
hadron-hadron scattering
quantum chromodynamics
w boson
description The production of W boson pairs in proton-proton collisions at √s = 8TeV 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) +5.7 -5.0(syst) ±1.4(lumi) pb. This agrees with the next-to-next-to-leading-order Standard Model prediction of 63.2+1.6 -1.4(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.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of total and difierential 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
title_short Measurement of total and difierential 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
title_full Measurement of total and difierential 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
title_fullStr Measurement of total and difierential 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
title_full_unstemmed Measurement of total and difierential 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
title_sort measurement of total and difierential 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
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/79236
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