High energy cosmic rays from decaying dark matter

✍ Scribed by A. Ibarra

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 283 KB
• Volume: 59
• Category: Article
• ISSN: 0015-8208
• DOI: 10.1002/prop.201100045

✦ Synopsis

Abstract

We discuss the implications of the excess in the total electron plus positron flux and the positron fraction reported by the Fermi and PAMELA collaborations, respectively, for the scenario of decaying dark matter. We also discuss the constraints on this scenario from measurements of other cosmic ray species and the predictions for the diffuse gamma ray flux and the neutrino flux. In particular, we expect a sizable dipole‐like anisotropy in the diffuse gamma‐ray flux which may be observed by the Fermi‐LAT in the near future.