Supernova-neutrino studies with 100Mo

We show that supernova neutrinos can be studied by observing their charged-current interactions with 100Mo, which has strong spin–isospin giant resonances. Information about both the effective temperature of the electron–neutrino sphere and the oscillation into electron neutrinos of other flavors can be extracted from the electron (inverse β) spectrum. We use measured hadronic charge-exchange spectra and the Quasiparticle Random Phase Approximation to calculate the charged-current response of 100Mo to electron neutrinos from supernovae, with and without the assumption of oscillations. A scaled up version of the MOON detector for ββ and solar-neutrino studies could potentially be useful for spectroscopic studies of supernova neutrinos as well.