SuperNova neutrino physics with nuclear emulsion detectors

Abstract

Supernova explosions are very powerful phenomena occurring in the space. Although the observation of these events is very rarely achieved, the new generation of ton-scale detectors for dark matter search are sensitive to neutrinos coming for supernovae which can also represent a serious and unremoveable background source. A directional detector based on nuclear emulsions provides the unique capability to observe neutral current interactions of neutrinos originated by a supernova explosion. NEWSdm is a detector based on nuclear emulsions made of nanometric size crystals which can make the reconstruction of trajectories with path lengths down to 50 nm possible if analyzed by means of microscopes with enough resolution.