An alternative for righthanded neutrinos: lefthanded see--saw

Details An alternative for righthanded neutrinos: lefthanded see--saw An alternative for righthanded neutrinos: lefthanded see--saw

1999-09-10

arxiv.org/abs/hep-ph/9909319v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 1+6 pages

Scientific paper

A new lefthanded see-saw mechanism is constructed, implying both the smallness of active-neutrino masses and decoupling of heavy passive neutrinos, similarly to the situation in the case of conventional see-saw. But now, in place of the conventional righthanded neutrinos, the lefthanded sterile neutrinos play the role of heavy passive neutrinos, the righthanded neutrinos and righthanded sterile neutrinos being absent. In this case, the neutrino mass term is necessarily of pure Majorana type.

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