Neutrino astrophysics with JEM-EUSO

A. D. SUPANITSKY; G. MEDINA-TANCO

Beijin

Conferencia; 32nd International Cosmic Ray Conference; 2011

High energy neutrinos play a fundamental role on the understanding of several astrophysical phenomena and, in particular, on the origin and propagation of extreme energy cosmic rays. JEM-EUSO is a proposed orbital detector to be installed onboard the International Space Station. It is designed to observe the fluorescence light produced by the air showers initiated by the extreme energy component of the cosmic rays, including gamma rays and neutrinos. In this work we study the discrimination capability of the mission between nearly horizontal neutrino and proton showers, at the highest energies, by using the atmospheric depth of maximum development. We propose a new method to discriminate between electron neutrino and tau horizontal showers, developing very deep in the atmosphere, by using the multi-peak structure that they present. We also study the flux of tau leptons emerging from the Earth, including the case of the presence of oceans, produced by the interaction of tau neutrinos inside the Earth for a given model of gamma ray bursts and in the context of the JEM-EUSO mission.