Prospects for observations of high-energy cosmic tau neutrinos

Abstract

We study prospects for the observations of high-energy cosmic tau neutrinos (E \geq 10^6 GeV) originating from proton acceleration in the cores of active galactic nuclei. We consider the possibility that vacuum flavor neutrino oscillations induce a tau to muon neutrino flux ratio greatly exceeding the rather small value expected from intrinsic production. The criterias and event rates for under water/ice light Cerenkov neutrino telescopes are given by considering the possible detection of downgoing high-energy cosmic tau neutrinos through characteristic double shower events.

10 pages, Revtex, 3 figures included with epsf

References in corpus (1)

• Neutrino-induced upward stopping muons in Super-Kamiokande

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