Neutrino mixing matrix in the 3-3-1 model with heavy leptons and $A_4$ symmetry

Details Neutrino mixing matrix in the 3-3-1 model with heavy leptons and $A_4$ symmetry Neutrino mixing matrix in the 3-3-1 model with heavy leptons and $A_4$ symmetry

2007-04-29

arxiv.org/abs/0704.3827v1

Phys.Rev.D75:073010,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages

Scientific paper

10.1103/PhysRevD.75.073010

We study the lepton sector in the model based on the local gauge group $SU(3)_c\otimes SU(3)_L\otimes U(1)_X$ which do not contain particles with exotic electric charges. The seesaw mechanism and discrete $A_4$ symmetry are introduced into the model to understand why neutrinos are especially light and the observed pattern of neutrino mixing. The model provides a method for obtaining the tri-bimaximal mixing matrix in the leading order. A non-zero mixing angle $V_{e3}$ presents in the modified mixing matrix.

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