Running-mass models of inflation, and their observational constraints
High Energy Physics - Phenomenology
2009-10-31 v2 Astrophysics
High Energy Physics - Theory
Abstract
If the inflaton sector is described by softly broken supersymmetry, and the inflaton has unsuppressed couplings, the inflaton mass will run strongly with scale. Four types of model are possible. The prediction for the spectral index involves two parameters, while the COBE normalization involves a third, all of them calculable functions of the relevant masses and couplings. A crude estimate is made of the region of parameter space allowed by present observation.
Cite
@article{arxiv.hep-ph/9809562,
title = {Running-mass models of inflation, and their observational constraints},
author = {Laura Covi and David H. Lyth},
journal= {arXiv preprint arXiv:hep-ph/9809562},
year = {2009}
}
Comments
Latex file, 20 pages, 11 figures, uses epsf.sty. Comment on the observation of the spectral index scale dependence added; Fig. 3-6 improved