Search for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHC

A search for the Standard Model Higgs boson produced in association with a Z boson and decaying into bottom quark pairs at the LHC with the CMS detector is presented. The Z boson is required to decay into leptons. The search is performed using 5 fb$^{-1}$ of data collected at the centre of mass ener...

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Detalles Bibliográficos
Autor principal: Bortignon, Pierluigi
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1749087
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author Bortignon, Pierluigi
author_facet Bortignon, Pierluigi
author_sort Bortignon, Pierluigi
collection CERN
description A search for the Standard Model Higgs boson produced in association with a Z boson and decaying into bottom quark pairs at the LHC with the CMS detector is presented. The Z boson is required to decay into leptons. The search is performed using 5 fb$^{-1}$ of data collected at the centre of mass energy of 7TeV and 18.9fb$^{-1}$ of data collected at 8 TeV. An overall excess of events with respect to the background only hypothesis is observed in the Higgs boson mass range between 110 and 135 GeV. The local p-value of this excess is 0.5 (0.008) for a Higgs boson with a mass of 110 (135) GeV. The signal strength of this excess, relative to the standard model cross section, for a Higgs boson hypothesis of 125 GeV is 0.8±1.0.
id cern-1749087
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17490872019-09-30T06:29:59Zhttp://cds.cern.ch/record/1749087engBortignon, PierluigiSearch for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHCParticle Physics - ExperimentA search for the Standard Model Higgs boson produced in association with a Z boson and decaying into bottom quark pairs at the LHC with the CMS detector is presented. The Z boson is required to decay into leptons. The search is performed using 5 fb$^{-1}$ of data collected at the centre of mass energy of 7TeV and 18.9fb$^{-1}$ of data collected at 8 TeV. An overall excess of events with respect to the background only hypothesis is observed in the Higgs boson mass range between 110 and 135 GeV. The local p-value of this excess is 0.5 (0.008) for a Higgs boson with a mass of 110 (135) GeV. The signal strength of this excess, relative to the standard model cross section, for a Higgs boson hypothesis of 125 GeV is 0.8±1.0.CERN-THESIS-2014-095ETH/21744oai:cds.cern.ch:17490872014-08-12T13:30:43Z
spellingShingle Particle Physics - Experiment
Bortignon, Pierluigi
Search for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHC
title Search for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHC
title_full Search for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHC
title_fullStr Search for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHC
title_full_unstemmed Search for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHC
title_short Search for the standard model Higgs boson produced in association with a Z boson with the CMS detector at the LHC
title_sort search for the standard model higgs boson produced in association with a z boson with the cms detector at the lhc
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1749087
work_keys_str_mv AT bortignonpierluigi searchforthestandardmodelhiggsbosonproducedinassociationwithazbosonwiththecmsdetectoratthelhc

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