Monochromatic neutrino signals from dark matter annihilation |
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Authors: | Vernon Barger Wai-Yee Keung Gabe Shaughnessy |
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Institution: | 1. Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, WI 53706, USA;2. Physics Department, University of Illinois at Chicago, IL 60607-7059, USA |
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Abstract: | Dark matter (DM) annihilations in the Sun to neutrino–antineutrino pairs are known to have potentially observable signatures in neutrino telescopes such as IceCube and KM3. We propose a model independent analysis in which the monochomatic neutrino signal from dark matter (DM) annihilations in the Sun is related to the direct detection spin-independent and spin-dependent cross sections rather than assuming cross sections from a particular model. We propagate the neutrinos from the center of the Sun to the Earth taking into account matter effects on neutrino oscillations. For DM capture in the Sun via a large spin-dependent DM capture cross section the discovery prospects of the IceCube experiment are found to be promising. |
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