Cosmological moduli problem in low cutoff theory

Kazunori Nakayama, Fuminobu Takahashi, Tsutomu T. Yanagida

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We show that the cosmological moduli problem is solved without relying on huge late-time entropy production, if the universal cutoff scale of the theory is a few orders of magnitude smaller than the Planck scale. We obtain a general estimate of the modulus abundance in terms of the inflationary scale and reheating temperature, and find, in particular, that the reheating temperature can be high enough for nonthermal leptogenesis to work.

Original languageEnglish
Article number043507
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume86
Issue number4
DOIs
Publication statusPublished - 2012 Aug 3

ASJC Scopus subject areas

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

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