Dark Matter production from relativistic bubble walls

Journal of High Energy Physics

Wen Yin¹  Aleksandr Azatov²  Miguel Vanvlasselaer² 

[1] Department of Physics, The University of Tokyo, Bunkyo-ku, 113-0033, Tokyo, Japan;SISSA International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy;INFN — Sezione di Trieste, Via Bonomea 265, 34136, Trieste, Italy;IFPU, Institute for Fundamental Physics of the Universe, Via Beirut 2, 34014, Trieste, Italy;

关键词: Cosmology of Theories beyond the SM;    Spontaneous Symmetry Breaking;    Beyond Standard Model;    Thermal Field Theory;   

DOI  :  10.1007/JHEP03(2021)288

来源: Springer

【 摘 要 】

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.

【 授权许可】

CC BY