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arXiv · hep-ph/0109236

Double Threefold Degeneracies for Active and Sterile Neutrinos

Ernest Ma·G. Rajasekaran
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Abstract

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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Ernest Ma, G. Rajasekaran. 2001-09-25. Double Threefold Degeneracies for Active and Sterile Neutrinos. https://doi.org/10.1142/s0217732301005679

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