The Rate Difference between the Weak Decays of $t$ and $\bar{t}$ in Supersymmetry

Abstract

We find that the $CP$-violating asymmetry $$\frac{\Gamma \left(t\to b{W}^{+}\right)-\Gamma \left(\bar{t}\to \bar{b}{W}^{-}\right)}{\Gamma \left(t\to b{W}^{+}\right)+\Gamma \left(\bar{t}\to \bar{b}{W}^{-}\right)}$$ at the one-loop order within the minimal supersymmetric extension of the standard model is of the order of few per cent for maximal $CP$ violation. It could be measured by considering the rate difference in the one-lepton events.

Comments: 9 pages (2 figures not included), CERN.TH-6927/93