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Recent Vector Boson Scattering results from CMS

<!--HTML--><p><span><span>Vector boson scattering is a key production process to probe the electroweak symmetry breaking of the standard model, since it involves both self-couplings of vector bosons and coupling with the Higgs boson. If the Higgs mechanism is not the sole sou...

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Autor principal: Gomez Ceballos Retuerto, Guillelmo
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:http://cds.cern.ch/record/2744132
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author Gomez Ceballos Retuerto, Guillelmo
author_facet Gomez Ceballos Retuerto, Guillelmo
author_sort Gomez Ceballos Retuerto, Guillelmo
collection CERN
description <!--HTML--><p><span><span>Vector boson scattering is a key production process to probe the electroweak symmetry breaking of the standard model, since it involves both self-couplings of vector bosons and coupling with the Higgs boson. If the Higgs mechanism is not the sole source of electroweak symmetry breaking, the scattering amplitude deviates from the standard model prediction at high scattering energy. Moreover, deviations may be detectable even if a new physics scale is higher than the reach of direct searches. Latest measurements of production cross sections of WZ, same-sign WW, and ZZ boson pairs in association with two jets in proton-proton collisions at sqrt(s) = 13 TeV at the LHC are reported using a data set recorded by the CMS detector. Differential fiducial cross sections as functions of several quantities are measured for WW and WZ production. An observation of electroweak production of WZ boson pairs is reported with an observed (expected) significance of 6.8 (5.3) standard deviations. The electroweak production of two jets in association with two Z bosons is measured with an observed (expected) significance of 4.0 (3.5) standard deviations. Furthermore, first measurements of the production cross sections of polarized same-sign WW boson pairs are reported. Constraints are obtained on the structure of quartic vector boson interactions in the framework of effective field theory.</span></span></p> <p><strong><em><span><span>Password:&nbsp;</span></span></em><span><span>580536</span></span></strong></p>
id cern-2744132
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling cern-27441322022-11-02T22:36:23Zhttp://cds.cern.ch/record/2744132engGomez Ceballos Retuerto, GuillelmoRecent Vector Boson Scattering results from CMSRecent Vector Boson Scattering results from CMSLHC Seminar<!--HTML--><p><span><span>Vector boson scattering is a key production process to probe the electroweak symmetry breaking of the standard model, since it involves both self-couplings of vector bosons and coupling with the Higgs boson. If the Higgs mechanism is not the sole source of electroweak symmetry breaking, the scattering amplitude deviates from the standard model prediction at high scattering energy. Moreover, deviations may be detectable even if a new physics scale is higher than the reach of direct searches. Latest measurements of production cross sections of WZ, same-sign WW, and ZZ boson pairs in association with two jets in proton-proton collisions at sqrt(s) = 13 TeV at the LHC are reported using a data set recorded by the CMS detector. Differential fiducial cross sections as functions of several quantities are measured for WW and WZ production. An observation of electroweak production of WZ boson pairs is reported with an observed (expected) significance of 6.8 (5.3) standard deviations. The electroweak production of two jets in association with two Z bosons is measured with an observed (expected) significance of 4.0 (3.5) standard deviations. Furthermore, first measurements of the production cross sections of polarized same-sign WW boson pairs are reported. Constraints are obtained on the structure of quartic vector boson interactions in the framework of effective field theory.</span></span></p> <p><strong><em><span><span>Password:&nbsp;</span></span></em><span><span>580536</span></span></strong></p>oai:cds.cern.ch:27441322020
spellingShingle LHC Seminar
Gomez Ceballos Retuerto, Guillelmo
Recent Vector Boson Scattering results from CMS
title Recent Vector Boson Scattering results from CMS
title_full Recent Vector Boson Scattering results from CMS
title_fullStr Recent Vector Boson Scattering results from CMS
title_full_unstemmed Recent Vector Boson Scattering results from CMS
title_short Recent Vector Boson Scattering results from CMS
title_sort recent vector boson scattering results from cms
topic LHC Seminar
url http://cds.cern.ch/record/2744132
work_keys_str_mv AT gomezceballosretuertoguillelmo recentvectorbosonscatteringresultsfromcms