Dark Matter in the Time of Primordial Black Holes

Abstract

Hawking evaporation of primordial black holes (PBH) with masses ranging from $\sim 10^{-1}$ to $\sim 10^9$ g can generate the whole observed dark matter (DM) relic density. However, a second DM production mechanism, like freeze-out or freeze-in, could have also been active in the early universe. Here we study the interplay of these mechanisms, focusing on the scenario where PBHs dominate the energy density of the universe, leading to a nonstandard cosmological era. For concreteness, we use the singlet scalar DM model as an example for this analysis.

11+6 pages, 5 figures. V2 matches version accepted in JCAP

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• Testing Super-Heavy Dark Matter from Primordial Black Holes with Gravitational Waves
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• Dark Matter and Leptogenesis from Gravitational Production
• Cogenesis of Baryon Asymmetry and Gravitational Dark Matter from Primordial Black Holes
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• Detailed Calculation of Primordial Black Hole Formation During First-Order Cosmological Phase Transitions
• Primordial Black Hole Dark Matter in the Context of Extra Dimensions
• Slaying Axion-Like Particles via Gravitational Waves and Primordial Black Holes from Supercooled Phase Transition
• High-Energy and Ultra-High-Energy Neutrinos from Primordial Black Holes
• Gravitational Wave Sourced by Decay of Massive Particle from Primordial Black Hole evaporation
• Unitarity Bound on Dark Matter in Low-temperature Reheating Scenarios
• Search for boosted keV-MeV light dark matter particles from evaporating primordial black holes at the CDEX-10 experiment
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• Probing Dark Matter Particles from Evaporating Primordial Black Holes via Electron Scattering in the CDEX-10 Experiment
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• Warm Hawking Relics From Primordial Black Hole Domination
• Non-thermal WIMPy Baryogenesis with Primordial Black Hole
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