Inflation from a Supersymmetric Axion Model
High Energy Physics - Phenomenology
2011-02-02 v2 Cosmology and Nongalactic Astrophysics
Abstract
We show that a supersymmetric axion model naturally induces a hybrid inflation with the waterfall field identified as a Peccei-Quinn scalar. The Peccei-Quinn scale is predicted to be around 10^{15}GeV for reproducing the large-scale density perturbation of the Universe. After the built-in late-time entropy-production process, the axion becomes a dark matter candidate. Several cosmological implications are discussed.
Cite
@article{arxiv.1008.5013,
title = {Inflation from a Supersymmetric Axion Model},
author = {Masahiro Kawasaki and Naoya Kitajima and Kazunori Nakayama},
journal= {arXiv preprint arXiv:1008.5013},
year = {2011}
}
Comments
5 pages; to appear in PRD