Double Threefold Degeneracies for Active and Sterile Neutrinos

Details Double Threefold Degeneracies for Active and Sterile Neutrinos Double Threefold Degeneracies for Active and Sterile Neutrinos

2001-09-25

arxiv.org/abs/hep-ph/0109236v1

Mod.Phys.Lett. A16 (2001) 2207-2212

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, no figure

Scientific paper

10.1142/S0217732301005679

We explore the possibility that the 3 active (doublet) neutrinos have nearly degenerate masses which are split only by the usual seesaw mechanism from 3 sterile (singlet) neutrinos in the presence of a softly broken $A_4$ symmetry. We take the unconventional view that the sterile neutrinos may be light, i.e. less than 1 keV, and discuss some very interesting and novel phenomenology, including a connection between the LSND neutrino data and solar neutrino oscillations.

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