Standard Model Baryogenesis

M. B. Gavela; P. Hernández; J. Orloff; O. Pène

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arXiv · hep-ph/9407403

Standard Model Baryogenesis

M. B. Gavela·P. Hernández·J. Orloff·O. Pène

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Abstract

Simply on CP arguments, we argue against a Standard Model explanation of baryogenesis via the charge transport mechanism. A CP-asymmetry is found in the reflection coefficients of quarks hitting the electroweak phase boundary created during a first order phase transition. The problem is analyzed both in an academic zero temperature case and in the realistic finite temperature one. At finite temperature, a crucial role is played by the damping rate of quasi-quarks in a hot plasma, which induces loss of spatial coherence and suppresses reflection on the boundary even at tree-level. The resulting baryon asymmetry is many orders of magnitude below what observation requires. We comment as well on related works.

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M. B. Gavela, P. Hernández, J. Orloff, O. Pène. 1994-07-31. Standard Model Baryogenesis. https://arxiv.org/abs/hep-ph/9407403

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