Total Width of 125 GeV Higgs Boson

Vernon Barger, Muneyuki Ishida, Wai-Yee Keung

Published 2012-03-15, updated 2012-06-16Version 3

By using the LHC and Tevatron measurements of the cross sections to various decay channels relative to the standard model Higgs boson, the total width of the putative 125 GeV Higgs boson is determined as 6.1 +7.7-2.9 MeV. We describe a way to estimate the branching fraction for Higgs decay to dark matter. We also discuss a No-Go theorem for the gammagamma signal of the Higgs boson at the LHC.