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High-Energy Neutrino Signatures of Dark Matter Decaying into Leptons

Journal Article · · Phys.Rev.D
Decaying dark matter has previously been proposed as a possible explanation for the excess high energy cosmic ray electrons and positrons seen by PAMELA and the Fermi Gamma-Ray Space Telescope (FGST). To accommodate these signals however, the decays must be predominantly leptonic, to muons or taus, and therefore produce neutrinos, potentially detectable with the IceCube neutrino observatory. We find that, with five years of data, IceCube (supplemented by DeepCore) will be able to significantly constrain the relevant parameter space of decaying dark matter, and may even be capable of discovering dark matter decaying in the halo of the Milky Way.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1864242
Report Number(s):
FERMILAB-PUB-09-344-A; arXiv:0907.2385; oai:inspirehep.net:825640
Journal Information:
Phys.Rev.D, Journal Name: Phys.Rev.D Vol. 81
Country of Publication:
United States
Language:
English

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