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Regurgitated Dark Matter
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abstract
We present a new paradigm for the production of the dark matter (DM) relic abundance based on the evaporation of early Universe primordial black holes (PBHs) themselves formed from DM particles. As a concrete realization, we consider a minimal model of the dark sector in which a first-order phase transition results in the formation of Fermiball remnants that collapse to PBHs, which then emit DM particles. We show that the regurgitated DM scenario allows for DM in the mass range $\sim1$ GeV $- \,10^{16}$ GeV, thereby unlocking parameter space considered excluded.
Forward citations
Cited by 2 Pith papers
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Page Time of Primordial Black Holes in the Standard Model and Beyond
For Standard Model emission, a Schwarzschild primordial black hole of about 6.23 x 10^14 grams would reach its Page time at the current age of the Universe.
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ALP production from light primordial black holes: The role of superradiance
Superradiance from spinning light primordial black holes can boost moduli production by about ten orders of magnitude, and the resulting axion-like dark radiation tightens Planck-based limits on these black holes.
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