Condensate cosmology in O'Raifeartaigh models
High Energy Physics - Phenomenology
2011-08-25 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
Flat directions charged under an R-symmetry are a generic feature of O'Raifeartaigh models. Non-topological solitons associated with this symmetry, R-balls, are likely to form through the fragmentation of a condensate, itself created by soft terms induced during inflation. In gravity mediated SUSY breaking R-balls decay to gravitinos, reheating the universe. For gauge mediation R-balls can provide a good dark matter candidate. Alternatively they can decay, either reheating or cooling the universe. Conserved R-symmetry permits decay to gravitinos or gauginos, whereas spontaneously broken R-symmetry results in decay to visible sector gauge bosons.
Keywords
Cite
@article{arxiv.1106.1182,
title = {Condensate cosmology in O'Raifeartaigh models},
author = {James Barnard},
journal= {arXiv preprint arXiv:1106.1182},
year = {2011}
}
Comments
29 pages, 5 figures. Comments and references added, accepted for publication in JHEP