On the QCD corrections to the charged Higgs decay of a heavy quark

Abstract

Using dimensional regularization for both infrared and ultraviolet divergences, we confirm that the QCD corrections to the decay width $\Gamma (t\to H^{+}b)$ are equal to those to $\Gamma (t\to W^{+}b)$ in the limit of a large $t$ quark mass.

Comments: 6 pages, report Alberta Thy-25-92