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UHE and EHE neutrino induced taus inside the Earth

S. Bottai, S. Giurgola

astro-pharXiv:astro-ph/0205325

Abstract

Tau neutrinos interacting inside the Earth produce τ leptons which thereafter can decay inside the atmosphere. The propagation of extremely energetic 's and τ's through the Earth is studied by means of a detailed Monte Carlo simulation, taking into account all major mechanisms of interactions and τ energy loss as well as decay modes. The rates of τ's emerging from the Earth are determined as a function of τ's energy for several cosmic neutrino models.

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