Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-11-10
Phys.Lett. B497 (2001) 259-264
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages
Scientific paper
10.1016/S0370-2693(00)01351-4
A four-neutrino spectrum with a sterile neutrino without significant involvement in the atmospheric and solar neutrino oscillation experiments has been recently advocated as the correct picture to explain all existing experimental data. We propose a supersymmetric model in which this picture can be naturally implemented. In this model, the mass for the mainly active neutrino eigenstates is induced by the seesaw mechanism with a large intermediate scale $M_R$, whereas the mass for the mainly sterile neutrino state is closely related to supersymmetry breaking.
Borzumati Francesca
Hamaguchi Kenji
Yanagida Takayuki
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