淺穿地球之tau微中子模擬研究

Abstract

以 Monte-carlo method 探討穿過地球的 tau-neutrino 發生neutrino-nucleon scatterings 所產生的 tau 能量分佈, 解釋tau-neutrino來源能量與tau穿透率之間的關係, 並說明產生的tau 能量分佈對偵測微中子所造成的挑戰.

We present our Monte-carlo simulation results on tau-lepton energy spectrum induced by the Earth-skimming tau neutrinos, taking into account the inelasticity of neutrino-nucleon scatterings and the tau-lepton energy loss in detail. We argue that the tau-lepton flux resulting from neutrino-nucleon scatterings inside the earth is controlled by the tau-lepton range, rather than the distance of tau-leptons/neutrinos traverse inside the Earth. We also comment on the energy-resolution of tau neutrinos in the earth-skimming detection strategy.