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The energy spectrum of tau leptons induced by the high energy Earth-skimming neutrinos

J. -J. Tseng·T. -W. Yeh·H. Athar·M. A. Huang·F. -F. Lee·G. -L. Lin
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Abstract

We present a semi-analytic calculation of the tau-lepton flux emerging from the Earth, induced by the incident high energy neutrinos interacting inside the Earth for $10^{5} \leq E_ν/{\rm GeV} \leq 10^{10}$. We obtain results for the energy dependence of the tau-lepton flux coming from the Earth-skimming neutrinos, because of the neutrino-nucleon charged-current scattering as well as the resonant $\barν_e e^-$ scattering. We illustrate our results for several anticipated high energy astrophysical neutrino sources such as the AGNs, the GRBs, and the GZK neutrino fluxes. The tau lepton fluxes resulting from rock-skimming and ocean-skimming neutrinos are compared. Such comparisons can render useful information for the spectral indices of incident neutrino fluxes.

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J. -J. Tseng, T. -W. Yeh, H. Athar, M. A. Huang, F. -F. Lee, G. -L. Lin. 2003-05-27. The energy spectrum of tau leptons induced by the high energy Earth-skimming neutrinos. https://doi.org/10.1103/physrevd.68.063003

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