Is Electroweak Baryogenesis Classical?

Details Is Electroweak Baryogenesis Classical? Is Electroweak Baryogenesis Classical?

1995-06-15

arxiv.org/abs/hep-ph/9506336v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, latex, based on a talk given at the 7th Adriatic Meeting on Particle Physics, 13-20 Sep 1994, Croatia

Scientific paper

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.

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