Mixing-induced CP violating sources for electroweak baryogenesis

Abstract

The effects of flavor mixing in electroweak baryogenesis is investigated in a generalized semiclassical WKB approach. Through calculating the nonadiabatic corrections to the particle currents it is shown that extra CP violation sources arise from the off-diagonal part of the equation of motion of particles moving inside the bubble wall. The numerical importance of the mixing-induced source is discussed in the Minimal Supersymmetric Standard Model and compared with the source term induced by semiclassical force.

Comments: 3 pages, 2 figures. Talk given at the 16th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY08) June 16 - 21, 2008, Seoul, Korea. To appear in the proceedings