Dark Matter production from relativistic bubble walls

Journal of High Energy Physics

Wen Yin¹  Miguel Vanvlasselaer²  Aleksandr Azatov² 

[1] Department of Physics, The University of Tokyo;SISSA International School for Advanced Studies;

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: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown