Baryogenesis via relativistic bubble walls

Aleksandr Azatov, Miguel Vanvlasselaer, Wen Yin

研究成果: Article査読


We present a novel mechanism which leads to the baryon asymmetry generation during the strong first order phase transition. If the bubble wall propagates with ultra-relativistic velocity, it has been shown [1] that it can produce states much heavier than the scale of the transition and that those states are then out of equilibrium. In this paper, we show that this production mechanism can also induce CP-violation at one-loop level. We calculate those CP violating effects during the heavy particle production and show, that combined with baryon number violating interactions, those can lead to successful baryogenesis. Two models based on this mechanism are constructed and their phenomenology is discussed. Stochastic gravitational wave signals turn out to be generic signatures of this type of models.

ジャーナルJournal of High Energy Physics
出版ステータスPublished - 2021 10

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学


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