Cosmological Moduli Problem in Low Cutoff Theory
High Energy Physics - Phenomenology
2013-05-30 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
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 the reheating temperature, and find in particular that the reheating temperature can be high enough for the non-thermal leptogenesis to work.
Keywords
Cite
@article{arxiv.1112.0418,
title = {Cosmological Moduli Problem in Low Cutoff Theory},
author = {Kazunori Nakayama and Fuminobu Takahashi and Tsutomu T. Yanagida},
journal= {arXiv preprint arXiv:1112.0418},
year = {2013}
}
Comments
5 pages, 2 figures; minor corrections; to appear in PRD