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Recent Diboson Results from ATLAS

<!--HTML-->Measurements of the production of electroweak boson pairs at the LHC provide important tests of the electroweak sector of the Standard Model, including the electroweak symmetry breaking mechanism, and allow extraction of limits on anomalous triple-gauge couplings. ATLAS has studied...

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Autor principal: Hsu, Shih-Chieh
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:http://cds.cern.ch/record/1496426
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author Hsu, Shih-Chieh
author_facet Hsu, Shih-Chieh
author_sort Hsu, Shih-Chieh
collection CERN
description <!--HTML-->Measurements of the production of electroweak boson pairs at the LHC provide important tests of the electroweak sector of the Standard Model, including the electroweak symmetry breaking mechanism, and allow extraction of limits on anomalous triple-gauge couplings. ATLAS has studied diboson production processes involving all combinations of W, Z and isolated photons. Total and differential cross sections are measured in regions of phase space where the detector has high acceptance, and are then extrapolated to the full phase space using theoretical calculations of the acceptance. The Wgamma, Zgamma, WW, WZ and ZZ processes are used to provide new constraints on the triple-gauge couplings. The measurements of diboson production performed using leptonic decay channels are the cleanest probes of these processes. Measurements of WW+WZ production in the semileptonic channel, although challenging due to the high background rates, are important for understanding the related channels of Higgs boson production in association with W and Z bosons. The latest ATLAS results using data collected at a centre-of-mass energies of 7 and 8 TeV will be presented.
id cern-1496426
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
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spelling cern-14964262022-11-02T22:33:24Zhttp://cds.cern.ch/record/1496426engHsu, Shih-ChiehRecent Diboson Results from ATLASRecent Diboson Results from ATLASLHC Seminar<!--HTML-->Measurements of the production of electroweak boson pairs at the LHC provide important tests of the electroweak sector of the Standard Model, including the electroweak symmetry breaking mechanism, and allow extraction of limits on anomalous triple-gauge couplings. ATLAS has studied diboson production processes involving all combinations of W, Z and isolated photons. Total and differential cross sections are measured in regions of phase space where the detector has high acceptance, and are then extrapolated to the full phase space using theoretical calculations of the acceptance. The Wgamma, Zgamma, WW, WZ and ZZ processes are used to provide new constraints on the triple-gauge couplings. The measurements of diboson production performed using leptonic decay channels are the cleanest probes of these processes. Measurements of WW+WZ production in the semileptonic channel, although challenging due to the high background rates, are important for understanding the related channels of Higgs boson production in association with W and Z bosons. The latest ATLAS results using data collected at a centre-of-mass energies of 7 and 8 TeV will be presented. oai:cds.cern.ch:14964262012
spellingShingle LHC Seminar
Hsu, Shih-Chieh
Recent Diboson Results from ATLAS
title Recent Diboson Results from ATLAS
title_full Recent Diboson Results from ATLAS
title_fullStr Recent Diboson Results from ATLAS
title_full_unstemmed Recent Diboson Results from ATLAS
title_short Recent Diboson Results from ATLAS
title_sort recent diboson results from atlas
topic LHC Seminar
url http://cds.cern.ch/record/1496426
work_keys_str_mv AT hsushihchieh recentdibosonresultsfromatlas