Baryogenesis via relativistic bubble walls

被引：57

作者：

Azatov, Aleksandr ^{[1
,2
,3
]}

Vanvlasselaer, Miguel ^{[1
,2
,3
]}

Yin, Wen ^{[4
,5
]}

机构：

[1] SISSA Int Sch Adv Studies, Via Bonomea 265, I-34136 Trieste, Italy

[2] Ist Nazl Fis Nucl, Sez Trieste, Via Bonomea 265, I-34136 Trieste, Italy

[3] Inst Fundamental Phys Universe, IFPU, Via Beirut 2, I-34014 Trieste, Italy

[4] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[5] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 2021卷 / 10期

关键词：

Cosmology of Theories beyond the SM; Spontaneous Symmetry Breaking; Beyond Standard Model; Higgs Physics; ELECTROWEAK PHASE-TRANSITION; ELECTRIC-DIPOLE MOMENT; BARYON ASYMMETRY; VIOLATION; NUMBER; MATTER;

D O I：

10.1007/JHEP10(2021)043

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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.

引用

页数：31

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