Non-thermal WIMPy Baryogenesis with Primordial Black Hole

Abstract

We consider the possibility that the weakly interacting massive particles produced from the evaporation of primordial black hole can explain both the relic density of dark matter and the baryon asymmetry of the Universe, through their annihilation which violate B and CP-symmetry. We find that the primordial black hole with mass less than $10^7\mathrm{g}$ is a good candidate as an source of TeV dark matter with the total annihilation cross section $⟨{\sigma }_a\upsilon ⟩\lesssim 10^{-7}{\mathrm{GeV}}^{-2}$ and the B-violating scattering cross section $⟨{\sigma }_B\upsilon ⟩\lesssim 2\times 10^{-9}\mathrm{Ge}{\mathrm{V}}^{-2}$. This large annihilation cross section of dark matter in this model would make it available to search them in the indirect search for dark matter such as gamma-ray or neutrino observations.

References in corpus (8)

• Primordial Black Holes as Dark Matter: Recent Developments
• Searching for Dark Matter Annihilation in Recently Discovered Milky Way Satellites with Fermi-LAT
• Search for dark matter annihilation signals in the H.E.S.S. Inner Galaxy Survey
• Dark Matter in the Time of Primordial Black Holes
• Baryogenesis, Primordial Black Holes and MHz-GHz Gravitational Waves
• Primordial Black Hole Baryogenesis
• Cogenesis of Baryon Asymmetry and Gravitational Dark Matter from Primordial Black Holes
• Gravitational wave signatures of PBH-generated baryon-dark matter coincidence

Cited by in corpus (1)

• Gravitational Wave Sourced by Decay of Massive Particle from Primordial Black Hole evaporation