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arXiv · hep-ph/9404272

Baryon Asymmetry from a Two Stage Electroweak Phase Transition ?

A. Hammerschmitt·J. Kripfganz·M. G. Schmidt
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Abstract

We investigate an extension of the standard model with a second Higgs doublet, showing a two stage phase transition. Wash-out of a baryon asymmetry after the phase transition can be easily avoided in this class of models. B+L transitions are more strongly suppressed in the intermediate phase than in the high temperature symmetric phase,however. Therefore, it becomes more difficult if not impossible to generate a sufficient baryon asymmetry during the phase transition.

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A. Hammerschmitt, J. Kripfganz, M. G. Schmidt. 1994-04-15. Baryon Asymmetry from a Two Stage Electroweak Phase Transition ?. https://doi.org/10.1007/bf01557241

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