Baryon Asymmetry of the Universe in the Minimal Standard Model

Abstract

We calculate the baryon asymmetry of the Universe which would arise during a first order electroweak phase transition due to minimal standard model processes. It agrees in sign and magnitude with the observed baryonic excess, for resonable KM parameters and m${}_t$ in the expected range, and plausible values of bubble velocity and other high temperature effects. A detailed version of this work (77pp) is being simultaneously submitted to the net. A shortened version of this recently appeared in Phys. Rev. Lett. {\bf 70}, 2833, 1993.

14pp inc fig, RU-93-10 & CERN-TH.6729/93

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