Probing Dark Matter Dynamics via Earthborn Neutrinos at IceCube

Details Probing Dark Matter Dynamics via Earthborn Neutrinos at IceCube Probing Dark Matter Dynamics via Earthborn Neutrinos at IceCube

2008-12-17

arxiv.org/abs/0812.3331v2

JHEP 0905:099,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages and 3 figures

Scientific paper

10.1088/1126-6708/2009/05/099

Recent results from PAMELA and ATIC hint that O(TeV) dark matter (DM) is annihilating, in our galactic neighborhood, predominantly to leptons. The annihilation rate is much larger now than during freeze-out, one possible explanation of this is a low-velocity enhancement of the annihilation cross section. In a model independent fashion, we show that in this case the rate of neutrino emission from the Earth, due to DM annihilation, may be greatly enhanced while the rate from the Sun is unaltered. There is potential for IceCube to see these earthborn neutrinos while the same parameter space will be soon covered by direct detection experiments. Combining these near-future data will allow extraction of valuable information about the DM sector dynamics.

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