Supersymmetric QCD correction to hadronic width of the Higgs bosons

Abstract

We computed the supersymmetric QCD correction to the Higgs decay in the minimal supersymmetric standard model. The analytic expressions of such a correction to the decay rates are given for H, h, A→q q and H +→u d , keeping all masses. The numerical results are presented for the rates of H, A→t t, H, h→b b and H +→t b . The corrections are found to be quite large (∼10%) for H, A→t t and H +→t b for favorable parameter values, for negligibly small (<1%) for H, h→b b .