Light-neutrino mass hierarchies, nuclear matrix elements, and the observability of neutrinoless double-beta decay

Abstract

Results for neutrino flavor oscillations and neutrino mixing mechanisms, obtained from the analysis of the Sudbury Neutrino Observatory (SNO), the SuperKamiokande (SK), CHOOZ, KamLAND and WMAP data, are used to calculate the effective neutrino mass relevant for the neutrinoless double-beta decay. The observability of the decay of 76Ge is discussed within different light-neutrino mass hierarchies and by presenting a systematics on the available nuclear matrix elements.

25 pages, 1 figure

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• Neutrinoless double beta decay from a modern perspective
• A Calorimetric Search on Double Beta Decay of 130Te

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