PAMELA and ATIC Anomalies in Decaying Gravitino Dark Matter Scenario
PAMELA and ATIC Anomalies in Decaying Gravitino Dark Matter Scenario
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DOI:
10.1142/9789814293792_0015
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发表时间:
2009-03
期刊:
影响因子:
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通讯作者:
Koji Ishiwata;S. Matsumoto;T. Moroi
中科院分区:
文献类型:
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作者:
Koji Ishiwata;S. Matsumoto;T. Moroi
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.