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Higgs searches in CMS

I review searches for standard model (SM) and beyond the standard model (BSM) Higgs bosons in proton-proton collisions at $\sqrt{s}=7$~and~8\TeV in the Compact Muon Solenoid experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.1\fbinv at 7\TeV and 5.3\fbinv a...

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Detalles Bibliográficos
Autor principal: Newman, Harvey
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:http://cds.cern.ch/record/1503244
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author Newman, Harvey
author_facet Newman, Harvey
author_sort Newman, Harvey
collection CERN
description I review searches for standard model (SM) and beyond the standard model (BSM) Higgs bosons in proton-proton collisions at $\sqrt{s}=7$~and~8\TeV in the Compact Muon Solenoid experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.1\fbinv at 7\TeV and 5.3\fbinv at 8\TeV. The SM Higgs boson search is performed in five decay modes: $\Pgg\Pgg$, $\cPZ\cPZ$, $\PWp\PWm$, $\Pgt^+\Pgt^-$, and $\bbbar$. An excess of events is observed in this search above the expected background, with a local significance of 5.0 standard deviations, at a mass near 125\GeV, signalling the production of a new particle. The expected significance for a standard model Higgs boson of that mass is 5.8 standard deviations. The excess is most significant in the two decay modes with the best mass resolution, $\Pgg\Pgg$ and $\cPZ\cPZ$; a fit to these signals gives a mass of $125.3\pm 0.4\,(\text{stat.})\pm 0.5\,(\text{syst.})\GeV$. The decay to two photons indicates that the new particle is a boson with spin different from one. As the precise nature of the boson recently discovered at the Large Hadron Collider remains open, the search for other BSM Higgs particles has intensified and some of these searches in the context of fermiophobic, MSSM and Next-to-MSSM (NMSSM) models, and doubly charged Higgs bosons predicted by the minimal type II seesaw model, are presented.
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spelling cern-15032442019-09-30T06:29:59Zhttp://cds.cern.ch/record/1503244engNewman, HarveyHiggs searches in CMSDetectors and Experimental TechniquesI review searches for standard model (SM) and beyond the standard model (BSM) Higgs bosons in proton-proton collisions at $\sqrt{s}=7$~and~8\TeV in the Compact Muon Solenoid experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.1\fbinv at 7\TeV and 5.3\fbinv at 8\TeV. The SM Higgs boson search is performed in five decay modes: $\Pgg\Pgg$, $\cPZ\cPZ$, $\PWp\PWm$, $\Pgt^+\Pgt^-$, and $\bbbar$. An excess of events is observed in this search above the expected background, with a local significance of 5.0 standard deviations, at a mass near 125\GeV, signalling the production of a new particle. The expected significance for a standard model Higgs boson of that mass is 5.8 standard deviations. The excess is most significant in the two decay modes with the best mass resolution, $\Pgg\Pgg$ and $\cPZ\cPZ$; a fit to these signals gives a mass of $125.3\pm 0.4\,(\text{stat.})\pm 0.5\,(\text{syst.})\GeV$. The decay to two photons indicates that the new particle is a boson with spin different from one. As the precise nature of the boson recently discovered at the Large Hadron Collider remains open, the search for other BSM Higgs particles has intensified and some of these searches in the context of fermiophobic, MSSM and Next-to-MSSM (NMSSM) models, and doubly charged Higgs bosons predicted by the minimal type II seesaw model, are presented.CMS-CR-2012-393oai:cds.cern.ch:15032442012-12-30
spellingShingle Detectors and Experimental Techniques
Newman, Harvey
Higgs searches in CMS
title Higgs searches in CMS
title_full Higgs searches in CMS
title_fullStr Higgs searches in CMS
title_full_unstemmed Higgs searches in CMS
title_short Higgs searches in CMS
title_sort higgs searches in cms
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1503244
work_keys_str_mv AT newmanharvey higgssearchesincms