Decaying Hidden Gaugino as a Source of PAMELA/ATIC Anomalies
arXiv:0902.4770 · doi:10.1016/j.physletb.2009.03.059
Abstract
We study a scenario that a U(1) hidden gaugino constitutes the dark matter in the Universe and decays into a lepton and slepton pair through a mixing with a U(1)B-L gaugino. We find that the dark-matter decay can account for the recent PAMELA and ATIC anomalies in the cosmic-ray positrons and electrons without an overproduction of antiprotons.
12 pages, 1 figure.v2:a reference added