CPviolating asymmetries in single top quark production at the Fermilab Tevatronpp¯collider

Abstract
Analytic expressions for the angular distributions of the b quarks associated with single t-quark production in pp¯W*tb¯bb¯W and of the leptons from the subsequent decay Wlν are obtained in the laboratory system. CP violation in the t-production vertex is assumed. Different angular and total cross section CP violating asymmetries are considered. Relations testing CP violation in the t-decay vertex are also given. A numerical analysis is performed in the minimal supersymmetric standard model with a CP violating phase of the trilinear coupling At̃. The asymmetries are typically of the order of 103104.