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Study of the 125 GeV Standard Model Higgs Boson Partial Widths and Branching Fractions

The discovery of the Higgs boson, with mass known to better than the percent level, enables for the first time precision Higgs boson analyses. Toward this goal, we define an expansion formalism of the Higgs boson partial widths and branching fractions that facilitates such studies. This expansion yi...

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Detalles Bibliográficos
Autores principales: Almeida, Leandro G., Lee, Seung J., Pokorski, Stefan, Wells, James D.
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.89.033006
http://cds.cern.ch/record/1631498
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author Almeida, Leandro G.
Lee, Seung J.
Pokorski, Stefan
Wells, James D.
author_facet Almeida, Leandro G.
Lee, Seung J.
Pokorski, Stefan
Wells, James D.
author_sort Almeida, Leandro G.
collection CERN
description The discovery of the Higgs boson, with mass known to better than the percent level, enables for the first time precision Higgs boson analyses. Toward this goal, we define an expansion formalism of the Higgs boson partial widths and branching fractions that facilitates such studies. This expansion yields the observables as a perturbative expansion around reference values of Standard Model input observables (quark masses, QCD coupling constant, etc.). We compute the coefficients of the expansion using state-of-the-art results. We also study the various sources of uncertainties in computing the partial widths and branching fractions more precisely. We discuss the impact of these results with efforts to discern new physics through precision Higgs boson studies.
id cern-1631498
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-16314982021-07-16T00:06:44Zdoi:10.1103/PhysRevD.89.033006http://cds.cern.ch/record/1631498engAlmeida, Leandro G.Lee, Seung J.Pokorski, StefanWells, James D.Study of the 125 GeV Standard Model Higgs Boson Partial Widths and Branching FractionsParticle Physics - PhenomenologyThe discovery of the Higgs boson, with mass known to better than the percent level, enables for the first time precision Higgs boson analyses. Toward this goal, we define an expansion formalism of the Higgs boson partial widths and branching fractions that facilitates such studies. This expansion yields the observables as a perturbative expansion around reference values of Standard Model input observables (quark masses, QCD coupling constant, etc.). We compute the coefficients of the expansion using state-of-the-art results. We also study the various sources of uncertainties in computing the partial widths and branching fractions more precisely. We discuss the impact of these results with efforts to discern new physics through precision Higgs boson studies.The discovery of the Higgs boson, with a mass known to be better than the percent level, enables precision Higgs boson analyses for the first time. Toward this goal, we define an expansion formalism of the Higgs boson partial widths and branching fractions that facilitates such studies. This expansion yields the observables as a perturbative expansion around reference values of Standard Model input observables (quark masses, QCD coupling constant, etc.). We compute the coefficients of the expansion using state-of-the-art results. We also study the various sources of uncertainties in computing the partial widths and branching fractions more precisely. We discuss the impact of these results with efforts to discern new physics through precision Higgs boson studies.The discovery of the Higgs boson, with mass known to better than the percent level, enables for the first time precision Higgs boson analyses. Toward this goal, we define an expansion formalism of the Higgs boson partial widths and branching fractions that facilitates such studies. This expansion yields the observables as a perturbative expansion around reference values of Standard Model input observables (quark masses, QCD coupling constant, etc.). We compute the coefficients of the expansion using state-of-the-art results. We also study the various sources of uncertainties in computing the partial widths and branching fractions more precisely. We discuss the impact of these results with efforts to discern new physics through precision Higgs boson studies.arXiv:1311.6721CERN-PH-TH-2013-285CERN-PH-TH-2013-285oai:cds.cern.ch:16314982013-11-26
spellingShingle Particle Physics - Phenomenology
Almeida, Leandro G.
Lee, Seung J.
Pokorski, Stefan
Wells, James D.
Study of the 125 GeV Standard Model Higgs Boson Partial Widths and Branching Fractions
title Study of the 125 GeV Standard Model Higgs Boson Partial Widths and Branching Fractions
title_full Study of the 125 GeV Standard Model Higgs Boson Partial Widths and Branching Fractions
title_fullStr Study of the 125 GeV Standard Model Higgs Boson Partial Widths and Branching Fractions
title_full_unstemmed Study of the 125 GeV Standard Model Higgs Boson Partial Widths and Branching Fractions
title_short Study of the 125 GeV Standard Model Higgs Boson Partial Widths and Branching Fractions
title_sort study of the 125 gev standard model higgs boson partial widths and branching fractions
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.89.033006
http://cds.cern.ch/record/1631498
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AT pokorskistefan studyofthe125gevstandardmodelhiggsbosonpartialwidthsandbranchingfractions
AT wellsjamesd studyofthe125gevstandardmodelhiggsbosonpartialwidthsandbranchingfractions