Impact of SUSY-QCD corrections on top quark decay distributions

Abstract

We compute the supersymmetric QCD corrections to the decay distribution of polarized top quarks for the semileptonic decay mode $t(\uparrow )\to b{l}^{+}{\nu }_l$. As a byproduct, we reinvestigate the SUSY-QCD corrections to the total decay width $\Gamma (t\to W^{+}b)$ and resolve a discrepancy between two previous results in the literature.

Comments: 11 pages, 6 ps figures