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arXiv · 0811.0737

Decaying Dark Matter Baryons in a Composite Messenger Model

Koichi Hamaguchi·Eita Nakamura·Satoshi Shirai·T. T. Yanagida
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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.

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Koichi Hamaguchi, Eita Nakamura, Satoshi Shirai, T. T. Yanagida. 2008-11-28. Decaying Dark Matter Baryons in a Composite Messenger Model. https://doi.org/10.1016/j.physletb.2009.03.025

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