Double beta decay: present status

Details Double beta decay: present status Double beta decay: present status

2008-07-18

arxiv.org/abs/0807.2948v1

Phys.Atom.Nucl.73:162-178,2010

Physics

High Energy Physics

High Energy Physics - Experiment

33 pages included 7 figures and 14 tables; an extended version of the invited talk at 13th Lomonosov Conference of Elementary

Scientific paper

10.1134/S1063778810010187

The present status of double beta decay experiments (including the search for $2\beta^{+}$, EC$\beta^{+}$ and ECEC processes) are reviewed. The results of the most sensitive experiments are discussed. Average and recommended half-life values for two-neutrino double beta decay are presented. Conservative upper limits on effective Majorana neutrino mass and the coupling constant of the Majoron to the neutrino are established as $ < 0.75$ eV and $ < 1.9 \cdot 10^{-4}$, respectively. Proposals for future double beta decay experiments with a sensitivity for the $$ at the level of (0.01-0.1) eV are considered.

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