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Measurements of the properties of the Higgs-like boson with the CMS experiment at the LHC

Measurements of the properties of the recently discovered Higgs-like boson are presented using data samples recorded by the CMS experiment corresponding to integrated luminosities of up to 5.1~fb$^{-1}$ at 7~TeV and up to 12.2~fb$^{-1}$ at 8~TeV in proton proton collisions at the LHC. The result...

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Detalles Bibliográficos
Autor principal: Azzurri, Paolo
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:http://cds.cern.ch/record/1555802
Descripción
Sumario:Measurements of the properties of the recently discovered Higgs-like boson are presented using data samples recorded by the CMS experiment corresponding to integrated luminosities of up to 5.1~fb$^{-1}$ at 7~TeV and up to 12.2~fb$^{-1}$ at 8~TeV in proton proton collisions at the LHC. The results combine decay modes in pairs of photons, Z bosons, W bosons, tau leptons and b quarks. The mass of the boson is determined to be 125.8$\pm$0.4~(stat.) $\pm$0.4 (syst.)~GeV, and the signal strength at the measured mass is $\mu = 0.88\pm 0.21$, normalized to the standard model expectation. Combined results on couplings, spin and parity reveal a broad agreement with the expectations of a standard model Higgs boson.