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 66 Zn ( ν ˜ , ν ˜ ′ ) 66 Zn ∗ and 130 Te ( ν ˜ , ν ˜ ′ ) 130 Te ∗ within the context of the quasi–particle random phase approximation. The isotopes 66 Zn and 130 Te 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.