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. © 2021, The Author(s).

Dark Matter production from relativistic bubble walls / Azatov, Aleksandr; Vanvlasselaer, Miguel; Yin, Wen. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2021:3(2021), pp. 1-30. [10.1007/JHEP03(2021)288]

Dark Matter production from relativistic bubble walls

Azatov, Aleksandr
;
Vanvlasselaer, Miguel
;
2021

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. © 2021, The Author(s).
2021
3
1
30
288
https://arxiv.org/abs/2101.05721
Azatov, Aleksandr; Vanvlasselaer, Miguel; Yin, Wen
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11767/122340
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