Tracing Tau-Neutrinos from WIMP-Annihilation

Abstract

Accumulation and annihilation of weakly interacting massive particles (WIMPs) in the earth and the sun may be observed by the resulting neutrino signal. We demonstrate that, for certain parts of the SUSY parameter space, present and future neutrino telescopes can expect a higher rate of events due to tau-neutrinos than of events due to muon-neutrinos. We show how ${\nu }_{\tau }\leftrightarrow {\nu }_{\mu }$ oscillations, and in the case of the sun also scattering, absorption and regeneration, modify the signal expectation. We find that most currently proposed neutralino models predict equal or increased muon fluxes if ${\nu }_{\tau }\leftrightarrow {\nu }_{\mu }$ oscillations are included.

arXiv comment10 pages, 4 figures

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Cited by in corpus (7)

• Search for Dark Matter WIMPs using Upward Through-going Muons in Super-Kamiokande
• Spectra of neutrinos from dark matter annihilations
• Leptonic Unitarity Triangle and CP-violation
• Limits to the muon flux from neutralino annihilations in the Sun with the AMANDA detector
• Limits to the muon flux from WIMP annihilation in the center of the Earth with the AMANDA detector
• High-energy neutrino fluxes from supermassive dark matter
• High-energy neutrino oscillations in absorbing matter