Studying low-energy astrophysical neutrinos with neutrino nucleus cross-section calculations and beta beam neutrino spectra

We first calculate total neutrino-nucleus cross-sections for the reactions 66Zn(ν˜,ν˜′)66Zn∗ and 130Te(ν˜,ν˜′)130Te∗ within the context of the quasi-particle random phase approximation. The isotopes 66Zn and 130Te are contents of the COBRA double beta decay detector at Gran Sasso. We then use synthetic low-energy beta-beam antineutrino spectra, originating from boosted β− radioactive 6He ions for the interpretation of various SN-neutrino signals.