Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-12-20
Nucl.Phys.Proc.Suppl. 87 (2000) 324-326
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages. Presented at TAUP'99, 6-10 September 1999, College de France, Paris, France
Scientific paper
10.1016/S0920-5632(00)00693-9
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.
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