Dark Matter production from relativistic bubble walls
High Energy Physics - Phenomenology
2021-01-15 v1 Cosmology and Nongalactic Astrophysics
Abstract
In this paper we present a novel mechanism for producing the observed Dark Matter(DM) relic abundance during the First Order Phase Transition (FOPT) in the early universe. We show that the bubble expansion with ultra-relativistic velocities can lead to the abundance of DM particles with masses much larger than the scale of the transition. We study this non-thermal production mechanism in the context of a generic phase transition and the electroweak phase transition. The application of the mechanism to the Higgs portal DM as well as the signal in the Stochastic Gravitational Background are discussed.
Keywords
Cite
@article{arxiv.2101.05721,
title = {Dark Matter production from relativistic bubble walls},
author = {Aleksandr Azatov and Miguel Vanvlasselaer and Wen Yin},
journal= {arXiv preprint arXiv:2101.05721},
year = {2021}
}
Comments
20 pages + appendix, 8 figures