Decaying gravitino dark matter and an upper bound on the gluino mass
High Energy Physics - Phenomenology
2010-01-15 v2 Cosmology and Nongalactic Astrophysics
High Energy Astrophysical Phenomena
High Energy Physics - Theory
Abstract
We show that, if decaying gravitino dark matter is responsible for the PAMELA and ATIC/PPB-BETS anomalies in the cosmic-ray electron and positron fluxes, both a reheating temperature and a gluino mass are constrained from above. In particular, the gluino mass is likely within the reach of LHC, if the observed baryon asymmetry is explained by thermal leptogenesis scenario.
Keywords
Cite
@article{arxiv.0901.2168,
title = {Decaying gravitino dark matter and an upper bound on the gluino mass},
author = {Koichi Hamaguchi and Fuminobu Takahashi and T. T. Yanagida},
journal= {arXiv preprint arXiv:0901.2168},
year = {2010}
}
Comments
9 pages, 3 figures. v2: references added