LANCS-TH/9516 (1995), e-Print Archive: hep-ph/9506336 IS ELECTROWEAK BARYOGENESIS CLASSICAL? ∗

In this lecture first I present a brief genesis of the ideas on the electroweak baryogenesis and then I focus on a mechanism in which the source of CP violation is a CP -violating field condensate which could occur, for example, in multi-higgs extensions of the Standard Model. In the limit of a thick bubble wall one finds a classical force acting on particles proportional to the mass squared and the CP violating phase. One can study this force in the fluid approximation in which the effects of transport and particle decays can be taken into account. A novelty in this talk is generalization of the problem to the relativistic velocity. There is a regime in which the final formula for the baryon asymmetry has a rather simple form.