Cargando…
Observation of a Higgs-like Boson in CMS at the LHC
After decades of pursuit at lepton and hadron colliders around the world, a Higgs-like boson has been observed at the Large Hadron Collider (LHC). We present results of searches by the CMS collaboration for the production of the standard model Higgs boson in proton-proton collisions, using data sam...
Autor principal: | |
---|---|
Lenguaje: | eng |
Publicado: |
2012
|
Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1496497 |
_version_ | 1780926654363729920 |
---|---|
author | Bhat, Pushpalatha |
author_facet | Bhat, Pushpalatha |
author_sort | Bhat, Pushpalatha |
collection | CERN |
description | After decades of pursuit at lepton and hadron colliders around the world, a Higgs-like boson has been observed at the Large Hadron Collider (LHC). We present results of searches by the CMS collaboration for the production of the standard model Higgs boson in proton-proton collisions, using data samples corresponding to integrated luminosities of 5.1 fb$^{-1}$ at $\sqrt{s}$ = 7~TeV and 5.3 fb$^{-1}$ at $\sqrt{s}$ = 8~TeV. The searches have been performed in five Higgs decay modes, $\mathrm{\gamma\gamma}$, ZZ, WW, $\mathrm{\tau^+\tau^-}$, and $\mathrm{b\bar{b}}$, in the mass range from 110 up to 160 GeV. Multivariate methods have been used in many aspects of the analyses to extract optimal results. An excess of events has been observed above the expected background, with a significance of 5.0 standard deviations. Most of the excess is in the high resolution $\mathrm{\gamma\gamma}$ and ZZ decay modes. A fit to the signal in these modes yields a mass for the boson of 125.3$\pm$0.4(stat.)$\pm$0.5(syst.)~GeV. Since the new boson decays into two photons, its spin can be inferred to be different from one. |
id | cern-1496497 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2012 |
record_format | invenio |
spelling | cern-14964972019-09-30T06:29:59Zhttp://cds.cern.ch/record/1496497engBhat, PushpalathaObservation of a Higgs-like Boson in CMS at the LHCDetectors and Experimental TechniquesAfter decades of pursuit at lepton and hadron colliders around the world, a Higgs-like boson has been observed at the Large Hadron Collider (LHC). We present results of searches by the CMS collaboration for the production of the standard model Higgs boson in proton-proton collisions, using data samples corresponding to integrated luminosities of 5.1 fb$^{-1}$ at $\sqrt{s}$ = 7~TeV and 5.3 fb$^{-1}$ at $\sqrt{s}$ = 8~TeV. The searches have been performed in five Higgs decay modes, $\mathrm{\gamma\gamma}$, ZZ, WW, $\mathrm{\tau^+\tau^-}$, and $\mathrm{b\bar{b}}$, in the mass range from 110 up to 160 GeV. Multivariate methods have been used in many aspects of the analyses to extract optimal results. An excess of events has been observed above the expected background, with a significance of 5.0 standard deviations. Most of the excess is in the high resolution $\mathrm{\gamma\gamma}$ and ZZ decay modes. A fit to the signal in these modes yields a mass for the boson of 125.3$\pm$0.4(stat.)$\pm$0.5(syst.)~GeV. Since the new boson decays into two photons, its spin can be inferred to be different from one.CMS-CR-2012-248oai:cds.cern.ch:14964972012-10-03 |
spellingShingle | Detectors and Experimental Techniques Bhat, Pushpalatha Observation of a Higgs-like Boson in CMS at the LHC |
title | Observation of a Higgs-like Boson in CMS at the LHC |
title_full | Observation of a Higgs-like Boson in CMS at the LHC |
title_fullStr | Observation of a Higgs-like Boson in CMS at the LHC |
title_full_unstemmed | Observation of a Higgs-like Boson in CMS at the LHC |
title_short | Observation of a Higgs-like Boson in CMS at the LHC |
title_sort | observation of a higgs-like boson in cms at the lhc |
topic | Detectors and Experimental Techniques |
url | http://cds.cern.ch/record/1496497 |
work_keys_str_mv | AT bhatpushpalatha observationofahiggslikebosonincmsatthelhc |