Eluding the BBN constraints on the stable gravitino
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
We investigate how late-time entropy production weakens the Big-Bang Nucleosynthesis (BBN) constraints on the gravitino as lightest superparticle with a charged slepton as next-to-lightest superparticle. We find that with a moderate amount of entropy production, the BBN constraints can be eluded for most of the parameter space relevant for the discovery of the gravitino. This is encouraging for experimental tests of supergravity at LHC and ILC.
Cite
@article{arxiv.hep-ph/0605164,
title = {Eluding the BBN constraints on the stable gravitino},
author = {W. Buchmuller and K. Hamaguchi and M. Ibe and T. T. Yanagida},
journal= {arXiv preprint arXiv:hep-ph/0605164},
year = {2008}
}
Comments
6 pages, 1 figure