Baryon asymmetry, dark matter, and density perturbation from primordial black holes

Tomohiro Fujita*, Keisuke Harigaya, Masahiro Kawasaki, Ryo Matsuda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

We investigate the consistency of a scenario in which the baryon asymmetry, dark matter, and 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 baryon densities 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 matter, the Hubble scale during inflation and the non-Gaussianity. We also discuss the testability of the scenario by detecting high-frequency gravitational waves from PBHs.

Original languageEnglish
Article number103501
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume89
Issue number10
DOIs
Publication statusPublished - 2014 May 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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