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PAMELA and ATIC Anomalies in Decaying Gravitino Dark Matter Scenario

Motivated by the recent results from the PAMELA and ATIC, we study the cosmic-ray electron and positron produced by the decay of gravitino dark matter. We calculate the cosmic-ray electron and positron fluxes and discuss implications to the PAMELA and ATIC data. In this paper, we will show that the observed anomalous fluxes by the PAMELA and ATIC can be explained in such a scenario. We will also discuss the synchrotron radiation flux from the Galactic center in such a scenario.

preprint2009arXivOpen access
Koji IshiwataShigeki MatsumotoTakeo Moroi
hep-ph
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Open access3 authors1 topic
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Koji IshiwataShigeki MatsumotoTakeo Moroi

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