Cosmology of Light Moduli
High Energy Physics - Phenomenology
2016-08-25 v1 Astrophysics
High Energy Physics - Theory
Abstract
In string/M-theory with a large compactification radius, some axion-like moduli can be much lighter than the gravitino. Generic moduli in gauge-mediated supersymmetry breaking models also have a mass far below the weak scale. Motivated by these, we examine the cosmological implications of light moduli for the mass range from the weak scale to an extremely small scale of order 10^{-26} eV, and obtain an upper bound on the initial moduli misalignment for both cases with and without a late entropy production.
Cite
@article{arxiv.hep-ph/9801280,
title = {Cosmology of Light Moduli},
author = {Kiwoon Choi and Eung Jin Chun and Hang Bae Kim},
journal= {arXiv preprint arXiv:hep-ph/9801280},
year = {2016}
}
Comments
23 pages including 3 pictex-figures, Latex