Decaying Dark Matter Baryons in a Composite Messenger Model

Details Decaying Dark Matter Baryons in a Composite Messenger Model Decaying Dark Matter Baryons in a Composite Messenger Model

2008-11-05

arxiv.org/abs/0811.0737v2

Phys.Lett.B674:299-302,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures. v2: minor changes, note added

Scientific paper

10.1016/j.physletb.2009.03.025

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.

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