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Search for SM $VH\to Vb\bar{b}$ with the ATLAS detector

During Run-1 of the Large Hadron Collider, a particle consistent with the Standard Model Higgs boson was observed coupling directly to the leptonic and bosonic sectors of the Standard Model. The decay of the Standard Model Higgs to $b\bar{b}$ is the most commonly occurring decay mode, with a branchi...

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Autor principal: Bell, Andrew Stuart
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:http://cds.cern.ch/record/2274492
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author Bell, Andrew Stuart
author_facet Bell, Andrew Stuart
author_sort Bell, Andrew Stuart
collection CERN
description During Run-1 of the Large Hadron Collider, a particle consistent with the Standard Model Higgs boson was observed coupling directly to the leptonic and bosonic sectors of the Standard Model. The decay of the Standard Model Higgs to $b\bar{b}$ is the most commonly occurring decay mode, with a branching fraction of approximately $58\%$. Probing this decay is vital to furthering our understanding of the Standard Model. Due to the large multijet background, the direct observation of $H\to b\bar{b}$ in the gluon fusion channel is very challenging. Instead, looking for the associated production of a Higgs with a vector boson ($W/Z$), and triggering on leptonic decays of the vector boson provides an effective way to trigger on the $H\to b\bar{b}$ decays and reduce the overwhelming multijet background. The result of this analysis using the full 2015 and 2016 dataset, corresponding to $36.1~\text{fb}^{-1}$ of data will be presented, which will be one of the most sensitive searches to date for $H\to b\bar{b}$ decays.
id cern-2274492
institution Organización Europea para la Investigación Nuclear
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spelling cern-22744922019-09-30T06:29:59Zhttp://cds.cern.ch/record/2274492engBell, Andrew StuartSearch for SM $VH\to Vb\bar{b}$ with the ATLAS detectorParticle Physics - ExperimentDuring Run-1 of the Large Hadron Collider, a particle consistent with the Standard Model Higgs boson was observed coupling directly to the leptonic and bosonic sectors of the Standard Model. The decay of the Standard Model Higgs to $b\bar{b}$ is the most commonly occurring decay mode, with a branching fraction of approximately $58\%$. Probing this decay is vital to furthering our understanding of the Standard Model. Due to the large multijet background, the direct observation of $H\to b\bar{b}$ in the gluon fusion channel is very challenging. Instead, looking for the associated production of a Higgs with a vector boson ($W/Z$), and triggering on leptonic decays of the vector boson provides an effective way to trigger on the $H\to b\bar{b}$ decays and reduce the overwhelming multijet background. The result of this analysis using the full 2015 and 2016 dataset, corresponding to $36.1~\text{fb}^{-1}$ of data will be presented, which will be one of the most sensitive searches to date for $H\to b\bar{b}$ decays.ATL-PHYS-SLIDE-2017-539oai:cds.cern.ch:22744922017-07-15
spellingShingle Particle Physics - Experiment
Bell, Andrew Stuart
Search for SM $VH\to Vb\bar{b}$ with the ATLAS detector
title Search for SM $VH\to Vb\bar{b}$ with the ATLAS detector
title_full Search for SM $VH\to Vb\bar{b}$ with the ATLAS detector
title_fullStr Search for SM $VH\to Vb\bar{b}$ with the ATLAS detector
title_full_unstemmed Search for SM $VH\to Vb\bar{b}$ with the ATLAS detector
title_short Search for SM $VH\to Vb\bar{b}$ with the ATLAS detector
title_sort search for sm $vh\to vb\bar{b}$ with the atlas detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2274492
work_keys_str_mv AT bellandrewstuart searchforsmvhtovbbarbwiththeatlasdetector