%0 Journal Article
%T Decaying Dark Matter Baryons in a Composite Messenger Model
%A Hamaguchi
%A Koichi
%A Nakamura
%A Eita
%A Shirai
%A Satoshi
%A Yanagida
%A T. T.
%J High Energy Physics - Phenomenology
%D 2008
%I 
%R 10.1016/j.physletb.2009.03.025
%X 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.
%U http://arxiv.org/abs/0811.0737