Higgs boson decay to μ(μ)over-barγ -: art. no. 054025

The Higgs boson decay H-->mu<(mu)over bar>gamma is studied in the standard model at the tree and one-loop levels. It is shown that for Higgs boson masses above 110 GeV the contribution to the radiative width from the one-loop level exceeds the contribution from the tree level, and for Higgs boson masses above 140 GeV it even exceeds the contribution from the tree level decay H-->mu<(mu)over bar>. We also show that the contributions to the radiative decay width from the interference terms between the tree and one-loop diagrams are negligible.