Affleck-Dine baryogenesis after D -term inflation and solutions to the baryon-dark matter coincidence problem

Masahiro Kawasaki, Masaki Yamada

研究成果: Article査読

4 被引用数 (Scopus)

抄録

We investigate the Affleck-Dine baryogenesis after D-term inflation with a positive Hubble-induced mass term for a B-L flat direction. It stays at a large field value during D-term inflation, and just after inflation ends it starts to oscillate around the origin of the potential due to the positive Hubble-induced mass term. The phase direction is kicked by higher-dimensional Kähler potentials to generate the B-L asymmetry. The scenario predicts nonzero baryonic isocurvature perturbations, which would be detected by future observations of CMB fluctuations. We also provide a D-term inflation model which naturally explains the coincidence of the energy density of baryon and dark matter.

本文言語English
論文番号083512
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
91
8
DOI
出版ステータスPublished - 2015 4 8
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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