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Observation of Higgs boson decay to bottom quarks

The observation of the Standard Model Higgs boson decay to a bottom quark-antiquark pair is presented. The primary contribution to this result is from processes in which the Higgs boson is produced in association with a W or Z boson. The latest measurement of these processes is described, using 41.3...

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Autor principal: Cooperstein, Stephane Brunet
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:http://cds.cern.ch/record/2693593
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author Cooperstein, Stephane Brunet
author_facet Cooperstein, Stephane Brunet
author_sort Cooperstein, Stephane Brunet
collection CERN
description The observation of the Standard Model Higgs boson decay to a bottom quark-antiquark pair is presented. The primary contribution to this result is from processes in which the Higgs boson is produced in association with a W or Z boson. The latest measurement of these processes is described, using 41.3 fb$^{−1}$ of proton-proton collision data at center-of-mass energy $\sqrt{s}$= 13 TeV, collected by the CMS experiment in 2017. The significance of the observed excess in data over Standard Model backgrounds is 3.3 standard deviations. The result is combined with similar measurements performed by CMS on previous datasets, resulting in an observed significance of 5.6 standard deviations. The measured signal is well consistent with the Standard Model expectation for a Higgs boson with m$_{H}$ = 125 GeV decaying to bottom quarks, with a precision of 20%.
id cern-2693593
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
record_format invenio
spelling cern-26935932019-10-15T18:30:51Zhttp://cds.cern.ch/record/2693593engCooperstein, Stephane BrunetObservation of Higgs boson decay to bottom quarksDetectors and Experimental TechniquesThe observation of the Standard Model Higgs boson decay to a bottom quark-antiquark pair is presented. The primary contribution to this result is from processes in which the Higgs boson is produced in association with a W or Z boson. The latest measurement of these processes is described, using 41.3 fb$^{−1}$ of proton-proton collision data at center-of-mass energy $\sqrt{s}$= 13 TeV, collected by the CMS experiment in 2017. The significance of the observed excess in data over Standard Model backgrounds is 3.3 standard deviations. The result is combined with similar measurements performed by CMS on previous datasets, resulting in an observed significance of 5.6 standard deviations. The measured signal is well consistent with the Standard Model expectation for a Higgs boson with m$_{H}$ = 125 GeV decaying to bottom quarks, with a precision of 20%.CERN-THESIS-2019-164CMS-TS-2019-016oai:cds.cern.ch:26935932019
spellingShingle Detectors and Experimental Techniques
Cooperstein, Stephane Brunet
Observation of Higgs boson decay to bottom quarks
title Observation of Higgs boson decay to bottom quarks
title_full Observation of Higgs boson decay to bottom quarks
title_fullStr Observation of Higgs boson decay to bottom quarks
title_full_unstemmed Observation of Higgs boson decay to bottom quarks
title_short Observation of Higgs boson decay to bottom quarks
title_sort observation of higgs boson decay to bottom quarks
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/2693593
work_keys_str_mv AT coopersteinstephanebrunet observationofhiggsbosondecaytobottomquarks