On the waterfall behavior in hybrid inflation
Cosmology and Nongalactic Astrophysics
2011-09-03 v1 High Energy Physics - Phenomenology
Abstract
We revisit the hybrid inflation model focusing on the dynamics of the waterfall field in an analytical way. It is shown that inflation may last long enough during the waterfall regime for some parameter regions, confirming the claim of Clesse. In this case the scalar spectral index becomes red, and can fall into the best fit range of the WMAP observation.
Cite
@article{arxiv.1102.5612,
title = {On the waterfall behavior in hybrid inflation},
author = {Hideo Kodama and Kazunori Kohri and Kazunori Nakayama},
journal= {arXiv preprint arXiv:1102.5612},
year = {2011}
}
Comments
10 pages, 9 figures