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Associated production of $H(b\bar b, c\bar c)$ with a W or a Z in ATLAS

Results are presented from the ATLAS searches for Standard Model Higgs bosons decaying to a $b\bar b$ or $c\bar c$ pair, produced in association with a $W$ or $Z$ boson. The analyzed data correspond to $36.1\,\text{fb}^{-1}$ of $13\,\text{TeV}$ proton-proton collision data collected in Run 2 of the...

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Autor principal: Nielsen, Jason
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:http://cds.cern.ch/record/2318203
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author Nielsen, Jason
author_facet Nielsen, Jason
author_sort Nielsen, Jason
collection CERN
description Results are presented from the ATLAS searches for Standard Model Higgs bosons decaying to a $b\bar b$ or $c\bar c$ pair, produced in association with a $W$ or $Z$ boson. The analyzed data correspond to $36.1\,\text{fb}^{-1}$ of $13\,\text{TeV}$ proton-proton collision data collected in Run 2 of the Large Hadron Collider. The combination of Run 1 and Run 2 data in the $b\bar b$ channel yields a ratio of the measured production rate to the SM prediction equal to $0.90 \pm 0.18\ \text{(stat.)}^{+0.21}_{-0.19}\ \text{(syst.)}$. The observed significance of $3.6\sigma$ provides evidence for the direct $Hbb$ Yukawa coupling. A similar search for $c\bar c$ decays results in an upper limit on the production cross section times branching ratio of $2.7\,\text{pb}$.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
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spelling cern-23182032019-12-16T20:35:59Zhttp://cds.cern.ch/record/2318203engNielsen, JasonAssociated production of $H(b\bar b, c\bar c)$ with a W or a Z in ATLASParticle Physics - ExperimentResults are presented from the ATLAS searches for Standard Model Higgs bosons decaying to a $b\bar b$ or $c\bar c$ pair, produced in association with a $W$ or $Z$ boson. The analyzed data correspond to $36.1\,\text{fb}^{-1}$ of $13\,\text{TeV}$ proton-proton collision data collected in Run 2 of the Large Hadron Collider. The combination of Run 1 and Run 2 data in the $b\bar b$ channel yields a ratio of the measured production rate to the SM prediction equal to $0.90 \pm 0.18\ \text{(stat.)}^{+0.21}_{-0.19}\ \text{(syst.)}$. The observed significance of $3.6\sigma$ provides evidence for the direct $Hbb$ Yukawa coupling. A similar search for $c\bar c$ decays results in an upper limit on the production cross section times branching ratio of $2.7\,\text{pb}$.ATL-PHYS-PROC-2018-031oai:cds.cern.ch:23182032018-05-14
spellingShingle Particle Physics - Experiment
Nielsen, Jason
Associated production of $H(b\bar b, c\bar c)$ with a W or a Z in ATLAS
title Associated production of $H(b\bar b, c\bar c)$ with a W or a Z in ATLAS
title_full Associated production of $H(b\bar b, c\bar c)$ with a W or a Z in ATLAS
title_fullStr Associated production of $H(b\bar b, c\bar c)$ with a W or a Z in ATLAS
title_full_unstemmed Associated production of $H(b\bar b, c\bar c)$ with a W or a Z in ATLAS
title_short Associated production of $H(b\bar b, c\bar c)$ with a W or a Z in ATLAS
title_sort associated production of $h(b\bar b, c\bar c)$ with a w or a z in atlas
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2318203
work_keys_str_mv AT nielsenjason associatedproductionofhbbarbcbarcwithaworazinatlas