Experimental Approaches to Neutrino Nuclear Responses for ββ Decays and Astro-Neutrinos

Abstract

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Fundamental properties of neutrinos are investigated by studying double beta decays (ββ-decays), while atro-neutrino nucleo-syntheses and astro-neutrino productions are investigated by studying inverse beta decays (inverse β-decays) induced by astro-neutrinos. Neutrino nuclear responses for these ββ and β-decays are crucial for these neutrino studies in nuclei. This reports briefly perspectives on experimental studies of neutrino nuclear responses (square of nuclear matrix element) for ββ-decays and astro-neutrinos by using nuclear and leptonic (muon) charge-exchange reactions

Keywords

• double beta decay
• nuclear matrix element
• charge exchange reaction
• supernova neutrino
• quenching of axial vector coupling