Lepton fluxes from astrophysical neutrinos interacting inside the earth

Astrophysical neutrinos may be produced by several mechanisms, which give different flavor ratios. They oscillate into different flavor ratios during propargations from sources to the Earth. Determination of neutrino flavor ratio is a big challenge to the current neutrino experiments. We show that the neutrino flavor ratio at the astrophysical source can be determined by future neutrino-telescope measurements and the knowledge of neutrino mixing angles obtained from terrestrial experiments.It is demonstrated that the pion decay source and the muon damped source can be distinguished at the 3 σ level provided the accuracy of measurements on R ́ φ(ν_μ)/ (φ(ν_e) + φ(ν_τ )) and S φ (ν_e)/φ(ν_τ ) reach 10%.This paper describes simulation results on leptonic fluxes produced in ice detector and Earthskimming detector from the same neutrino source.