Confronting hybrid inflation in supergravity with CMB data
High Energy Physics - Phenomenology
2009-11-11 v1 Astrophysics
High Energy Physics - Theory
Abstract
-term GUT inflation coupled to N=1 Supergravity is confronted with CMB data. Corrections to the string mass-per-unit-length away from the Bogomolny limit are taken into account. We find that a superpotential coupling , with the dimension of the Higgs-representation, is still compatible with the data. The parameter space is enlarged in warm inflation, as well as in the curvaton and inhomogeneous reheat scenario. -strings formed at the end of -term inflation are also considered. Because these strings satisfy the Bogomolny bound the bounds are stronger: the gauge coupling is constrained to the range .
Cite
@article{arxiv.hep-ph/0503146,
title = {Confronting hybrid inflation in supergravity with CMB data},
author = {Rachel Jeannerot and Marieke Postma},
journal= {arXiv preprint arXiv:hep-ph/0503146},
year = {2009}
}
Comments
36 pages, 15 figures