arXiv:0902.4770·v2·High Energy Physics — Phenomenology
Decaying Hidden Gaugino as a Source of PAMELA/ATIC Anomalies
Satoshi Shirai🇯🇵 · Fuminobu Takahashi🇯🇵 · T. T. Yanagida🇯🇵
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.
Comments: 12 pages, 1 figure.v2:a reference added