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Dark Matter production from relativistic bubble walls
oleh: Aleksandr Azatov, Miguel Vanvlasselaer, Wen Yin
Format: | Article |
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Diterbitkan: | SpringerOpen 2021-03-01 |
Deskripsi
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.