Decaying Dark Matter Baryons in a Composite Messenger Model
High Energy Physics - Phenomenology
2010-01-15 v2
Abstract
A baryonic bound state with a mass of O(100) TeV, which is composed of strongly interacting messenger quarks in the low scale gauge mediation, can naturally be the cold dark matter. Interestingly, we find that such a baryonic dark matter is generically metastable, and the decay of this dark matter can naturally explain the anomalous positron flux recently observed by the PAMELA collaboration.
Keywords
Cite
@article{arxiv.0811.0737,
title = {Decaying Dark Matter Baryons in a Composite Messenger Model},
author = {Koichi Hamaguchi and Eita Nakamura and Satoshi Shirai and T. T. Yanagida},
journal= {arXiv preprint arXiv:0811.0737},
year = {2010}
}
Comments
10 pages, 2 figures. v2: minor changes, note added