Neutrino oscillations and neutrinoless double-beta decay

Abstract

We consider the scheme with mixing of three neutrinos and a mass hierarchy. We shown that, under the natural assumptions that massive neutrinos are Majorana particles and there are no unlikely fine-tuned cancellations among the contributions of the different neutrino masses, the results of solar neutrino experiments imply a lower bound for the effective Majorana mass in neutrinoless double-beta decay. We also discuss briefly neutrinoless double-beta decay in schemes with mixing of four neutrinos. We show that one of them is favored by the data.

7 pages. Presented at TAUP'99, 6-10 September 1999, College de France, Paris, France

References in corpus (7)

• Limits on Neutrino Oscillations from the CHOOZ Experiment
• Constraints on neutrino oscillation parameters from the measurement of day-night solar neutrino fluxes at Super-Kamiokande
• Phenomenology of Neutrino Oscillations
• Limits on the Majorana neutrino mass in the 0.1 eV range
• Constraints from Neutrino Oscillation Experiments on the Effective Majorana Mass in Neutrinoless Double $\beta$-Decay
• Implications of CHOOZ results for the decoupling of solar and atmospheric neutrino oscillations
• Four-Neutrino Mixing and Big-Bang Nucleosynthesis

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