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B Violation in the Hot Standard Model

Peter Arnold
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Abstract

I explain, as simply and pedagogically as I can, recent arguments that the high-temperature baryon number violation rate depends on the electroweak coupling as $Γ= # α_\w^5 T^4$ (up to higher order corrections). This is in contrast to the form $Γ= # α_\w^4 T^4$ that has historically been assumed in discussions of electroweak baryogenesis. I will give a general analysis of the time scale for non-perturbative gauge field fluctuations in hot non-Abelian plasmas.

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Peter Arnold. 1997-06-09. B Violation in the Hot Standard Model. https://arxiv.org/abs/hep-ph/9706305

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