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arXiv · 2305.02218

Hydrodynamic effects on the filtered dark matter produced by a first-order phase transition

Siyu Jiang·Fa Peng Huang·Chong Sheng Li
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Abstract

Motivated by current status of dark matter (DM) search, a new type of DM production mechanism is proposed based on thedynamical process of a strong first-order phase transition in the early universe, namely, the filtered DM mechanism. We study the hydrodynamic effects on the DM relic density. By detailed calculations, we demonstrate that the hydrodynamic modes with the corresponding hydrodynamic heating effects play essential roles in determining the DM relic density. The corresponding phase transition gravitational wave could help to probe this new mechanism.

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Siyu Jiang, Fa Peng Huang, Chong Sheng Li. 2023-05-03. Hydrodynamic effects on the filtered dark matter produced by a first-order phase transition. https://doi.org/10.1103/physrevd.108.063508

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