Hilltop Supernatural Inflation and Gravitino Problem
High Energy Physics - Phenomenology
2011-03-14 v3 Cosmology and Nongalactic Astrophysics
High Energy Astrophysical Phenomena
High Energy Physics - Theory
Abstract
In this paper, we explore the parameter space of hilltop supernatural inflation model and show the regime within which there is no gravitino problem even if we consider both thermal and nonthermal production mechanisms. We make plots for the allowed reheating temperature as a function of gravitino mass by constraints from big-bang nucleosynthesis. We also plot the constraint when gravitino is assumed to be stable and plays the role of dark matter.
Cite
@article{arxiv.1008.3200,
title = {Hilltop Supernatural Inflation and Gravitino Problem},
author = {Kazunori Kohri and Chia-Min Lin},
journal= {arXiv preprint arXiv:1008.3200},
year = {2011}
}
Comments
11 pages, 3 figures, to appear in JCAP