Neutrino Nuclear Responses For Neutrino Studies In Nuclear Femto Laboratories

Neutrinos are key particles for particle and astro-nuclear physics. Majorana neutrino masses and phases, solar and supernova neutrino productions and oscillations, and neutrino nuclear synthesis and fundamental weak interactions are well studied in nuclei as femto laboratories. Here neutrino nuclear responses are crucial for the neutrino studies. This reports briefly experimental studies of neutrino nuclear responses, charge exchange reactions on Ga to study nuclear responses for solar and 51Cr neutrinos, and β+ neutrino responses for ββ-ν matrix elements and astro ν interactions by photon and muon probes.