QCD corrections to the decay $H^{+}\to \text{st}\overline{\text{sb}}$ in the Minimal Supersymmetric Standard Model

Abstract

We calculate the supersymmetric $\mathcal{O}({\alpha }_s)$ QCD corrections to the width of the decay $H^{+}\to \text{st}\overline{\text{sb}}$ within the Minimal Supersymmetric Standard Model. We find that the QCD corrections are significant, but that they do not invalidate our previous conclusionat tree-level on the dominance of the $\text{st}\overline{\text{sb}}$ mode in a wide parameter region.

Comments: 15 pages, Latex, 2 figures