Tau Neutrinos with Cherenkov Telescope Array

Understand

The next generation of Imaging Atmospheric Cherenkov telescope, like CTA, is going to strongly improve the detection capability of high-energy cosmic rays.

• In our paper we discuss the possibility to use such apparatus to detect Earth-skimming tau neutrinos.
• Interestingly the analysis shows that order few events per year can be detected for energies above $10^8$ GeV in the optimistic case of larger neutrino fluxes produced by Flat Spectrum Radio Quasars.
• However, even for more conservative cosmogenic neutrino fluxes such rate will be also obtained, but for a decade of running.