Study of the standard model Higgs boson partial widths and branching fractions

Leandro G. Almeida, Seung Joon Lee, Stefan Pokorski, James D. Wells

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number033006
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume89
Issue number3
DOIs
Publication statusPublished - 2014 Feb 12

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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