PT Journal
AU Morisi, S
   Peinado, E
TI Admixture of quasi-Dirac and Majorana neutrinos with tri-bimaximal mixing
SO Physics Letters B
JI Phys. Lett. B
PY 2011
BP 451
EP 457
VL 701
IS 4
DI 10.1016/j.physletb.2011.06.024
LA English
DE Neutrinoless double beta decay; Neutrino masses and mixings; Flavor symmetries; Tri-bimaximal mixing; Neutrino hierarchy; Discrete symmetries
AB We propose a realization of the so-called bimodal/schizophrenic model proposed recently. We assume 54, the permutation group of four objects as flavor symmetry giving tri-bimaximal lepton mixing at leading order. In these models the second massive neutrino state is assumed quasi-Dirac and the remaining neutrinos are Majorana states. In the case of inverse mass hierarchy, the lower bound on the neutrinoless double beta decay parameter m(ee) is about two times that of the usual lower bound, within the range of sensitivity of the next generation of experiments.
ER