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Supernova-Neutrino Studies with ¹⁰⁰Mo

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arxiv astro-ph/0112379 v2 pith:AYJFPP2V submitted 2001-12-17 astro-ph

Supernova-Neutrino Studies with ¹⁰⁰Mo

classification astro-ph
keywords electronneutrinosbetastudiescharged-currentsupernovaapproximationassumption
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We show that supernova neutrinos can be studied by observing their charged-current interactions with $^{100}$Mo, 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 $\beta$) spectrum. We use measured hadronic charge-exchange spectra and the Quasiparticle Random Phase Approximation to calculate the charged-current response of $^{100}$Mo to electron neutrinos from supernovae, with and without the assumption of oscillations. A scaled up version of the MOON detector for $\beta \beta$ and solar-neutrino studies could potentially be useful for spectroscopic studies of supernova neutrinos as well.

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