Strong dynamics at the Planck scale as a solution to the cosmological moduli problem
High Energy Physics - Phenomenology
2011-02-24 v3 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We argue that strong dynamics at the Planck scale can solve the cosmological moduli problem. We discuss its implications for inflation models, and find that a certain type of multi-field inflation model is required for this mechanism to work, since otherwise it would lead to the serious eta-problem. Combined with the inflaton-induced gravitino problem, we show that a chaotic inflation with a discrete symmetry naturally avoids both problems. Interestingly, the focus point supersymmetry is predicted when this mechanism is applied to the Polonyi model.
Cite
@article{arxiv.1012.3227,
title = {Strong dynamics at the Planck scale as a solution to the cosmological moduli problem},
author = {Fuminobu Takahashi and Tsutomu T. Yanagida},
journal= {arXiv preprint arXiv:1012.3227},
year = {2011}
}
Comments
18 pages;v2: minor revision. Accepted for publication in JHEP