Kinetic approach to electroweak baryogenesis

Details Kinetic approach to electroweak baryogenesis Kinetic approach to electroweak baryogenesis

2003-02-21

arxiv.org/abs/hep-ph/0302192v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 6 figures. Invited talk at the International Workshop "Strong and Electroweak Matter 2002", October 2-5, 2002 Heidel

Scientific paper

After a short review of baryogenesis mechanisms, we focus on the charge transport mechanism at the electroweak scale, effective at strong electroweak phase transitions. Starting from the one-loop Schwinger-Dyson equations for fermions coupled to bosons, we present a derivation of the relevant kinetic equations in the on-shell and gradient approximations, relevant for the thick wall baryogenesis regime. We then discuss the CP-violating source from the semiclassical force in the flow term, and compare it with the source arising in the collision term of the kinetic equation. Finally, we summarize the results concerning the chargino mediated baryogenesis in the Minimal Supersymmetric Standard Model.

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