A semi-analytic calculation on the atmospheric tau neutrino flux in the GeV to TeV energy range

Abstract

We present a semi-analytic calculation on the atmospheric tau neutrino flux in the GeV to TeV energy range. The atmospheric ${\nu }_{\tau }$ flux is calculated for the entire zenith angle range. This flux is contributed by the oscillations of muon neutrinos coming from the two-body $\pi ,K$ decays and the three-body ${\mu }^{\pm }$ decays, and the intrinsic tau neutrino flux surviving the oscillations. The uncertainties in our calculations are discussed in detail. The implications of our result are also discussed.

arXiv commentRevtex, 30 pages (including 13 figures); paper expanded and title slightly changed, to appear in Astroparticle Physics

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• Downward-going tau neutrinos as a new prospect of detecting dark matter
• Sensitivities of IceCube DeepCore Detector to Signatures of Low-Mass Dark Matter in the Galactic Halo
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