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Combined measurements of the Higgs boson's couplings at $\sqrt{s}=13$ TeV

Combined measurements of the Higgs boson's production and decay rates, as well its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton-proton collision data set recorded by the CMS detector in 2016 at $\sqrt{s}=13$ TeV, corresponding to an integrated luminos...

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Detalles Bibliográficos
Autor principal: CMS Collaboration
Publicado: 2018
Materias:
Acceso en línea:http://cds.cern.ch/record/2308127
Descripción
Sumario:Combined measurements of the Higgs boson's production and decay rates, as well its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton-proton collision data set recorded by the CMS detector in 2016 at $\sqrt{s}=13$ TeV, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. The combination is based on the analysis of the production processes gluon fusion, vector boson fusion, and associated production with a W or Z boson or a pair of top quarks, and of the H$\to$ZZ, WW, $\gamma\gamma$, $\tau\tau$, bb, and $\mu\mu$ decay modes. Dedicated searches for invisible Higgs boson decays are also considered. The combined signal strength is measured as $\mu=1.17^{+0.10}_{-0.10}$. The Higgs boson production and decay rates are combined within the context of two generic parameterizations: one based on the ratios of cross sections and branching ratios, and the other based on the ratios of coupling modifiers. Several interpretations of the results, with more model-dependent parameterizations derived from the generic ones, are also given. The results are compatible with the standard model predictions in all of the parameterizations considered. The results are used to place constraints on the parameter spaces of various two Higgs doublet models.