http://arxiv.org/abs/1606.06904
We propose a simple $\Delta (27) \otimes Z_4$ model where neutrinos are predicted to be Dirac fermions. The smallness of their masses follows from a type-I seesaw mechanism and the leptonic CP violating phase correlates with the pattern of $\Delta (27)$ flavor symmetry breaking. The scheme naturally harbors a WIMP dark matter candidate associated to the Dirac nature of neutrinos, in that the same $Z_4$ lepton number symmetry also ensures dark matter stability.
S. Chulia, R. Srivastava and J. Valle
Thu, 23 Jun 16
18/49
Comments: 16 pages, 5 figures, Report N IFIC/16-43
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