Particle Physics in ASHRA

Abstract

Abstract Here we consider detectability of high-energy ν τ whose energy is larger than 10 16 eV by All-sky Survey High Resolution Air-shower telescope project (ASHRA). Furthermore, we discuss impacts on particle physics and astrophysics to detect such high-energy neutrinos. Observation of high energy ν τ We have never observed a high-energy neutrino whose energy is larger than 10 16 eV. Detecting such high-energy neutrinos has following four important implications [1]. 1. We can explore the frontiers of particle physics, e.g., the effects by the extra dimensions. 2. We can obtain informations about the source of the high-energy cosmic rays, even if it is optically thick, and we cannot observe it. 3. Comparing the composition of high-energy cosmic rays, i.e., gamma-rays, nuclei and neutrinos, we can obtain informations about the mechanism of the acceleration