Affleck-Dine baryogenesis and dark matter production after high-scale inflation

Keisuke Harigaya, Ayuki Kamada, Masahiro Kawasaki, Kyohei Mukaida, Masaki Yamada

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

The discovery of the primordial B-mode polarization by the BICEP2 experiment indicates inflation with a relatively high energy scale. Taking this indication into account, we propose consistent scenarios to account for the observed baryon and dark matter densities in gravity- and gauge-mediated supersymmetry breaking models. The baryon asymmetry is explained by the Afflck-Dine mechanism, which requires relatively low reheating temperature to avoid a sizable baryonic isocurvature perturbation. The low reheating temperature then requires nonthermal production of dark matter to account for the correct relic density of dark matter. Our scenarios can account for the observations of baryon and dark matter density in gravity and gauge mediation and predict some parameters, including the mass of dark matter.

Original languageEnglish
Article number043510
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume90
Issue number4
DOIs
Publication statusPublished - 2014 Aug 12
Externally publishedYes

ASJC Scopus subject areas

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

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