Neutrinoless double beta decay in four-neutrino models

Details Neutrinoless double beta decay in four-neutrino models Neutrinoless double beta decay in four-neutrino models

2000-03-29

arxiv.org/abs/hep-ph/0003281v1

Phys.Lett. B484 (2000) 64-72

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 1 figure

Scientific paper

10.1016/S0370-2693(00)00564-5

The most stringent constraint on the so-called effective electron neutrino mass from the present neutrinoless double beta decay experiments is |M_{ee}| < 0.2 eV, while the planned next generation experiment GENIUS is anticipated to reach a considerably more stringent limit |M_{ee}|< 0.001 eV. We investigate the constraints these bounds set on the neutrino masses and mixings of neutrinos in four-neutrino models where there exists a sterile neutrino along with the three ordinary neutrinos. We find that the GENIUS experiment would be sensitive to the electron neutrino masses down to the limit m_{\nu_e}\lsim 0.024 eV in such a scenario.

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