Complex Hybrid Inflation and Baryogenesis
High Energy Physics - Phenomenology
2008-11-26 v2 Astrophysics
High Energy Physics - Theory
Abstract
We propose a hybrid inflation model with a complex waterfall field which contains an interaction term that breaks the U(1) global symmetry associated to the waterfall field charge. We show that the asymmetric evolution of the real and imaginary parts of the complex field during the phase transition at the end of inflation translates into a charge asymmetry. The latter strongly depends on the vev of the waterfall field, which is well constrained by diverse cosmological observations.
Keywords
Cite
@article{arxiv.hep-ph/0609086,
title = {Complex Hybrid Inflation and Baryogenesis},
author = {David Delepine and Carlos Martinez and L. Arturo Urena-Lopez},
journal= {arXiv preprint arXiv:hep-ph/0609086},
year = {2008}
}
Comments
4 RevTex pages, no figures. Changes made in response to referee's comments; matches version published in Phys.Rev.Lett