Baryon asymmetry, dark matter, and density perturbation from primordial black holes
By Tomohiro Fujita, K. Harigaya, M. Kawasaki, R. Matsuda. 2014
143 citations recorded by the source corpus.
We investigate the consistency of a scenario in which the baryon asymmetry, dark matters, as well as the cosmic density perturbation are generated simultaneously through the evaporation of primordial black holes (PBHs). This scenario can explain the coincidence of the dark matter and the baryon density of the universe, and is free from the isocurvature perturbation problem. We show that this scenario predicts the masses of PBHs, right-handed neutrinos and dark matters, the Hubble scale during inflation, the non-gaussianity and the running of the spectral index. We also discuss the testability of the scenario by detecting high frequency gravitational waves from PBHs.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/867e5aa160e6b86179e0ef209384bafadccc2053
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In Nuclear and High Energy Physics
Citations in the corpus
- Melanopogenesis: dark matter of (almost) any mass and baryonic matter from the evaporation of primordial black holes weighing a ton (or less) (2018, methodology): “-scale relics from the evaporation of light primordial holes. The key assumption in Ref. [14] is that the black holes dominate the universe’s energy budget by the time they decay. More recently, Ref. [15] dealt with the possibility of a generation of the matter asymmetry from asymmetric sterile neut”