Lepton masses and mixing without Yukawa hierarchies

Abstract

We investigate the neutrino masses and mixing patten in a version of the $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ model with one extra exotic charged lepton per family as introduced by Ozer. It is shown that an extended scalar sector, together with a discrete $Z_2$ symmetry, is able to reproduce a consistent lepton mass spectrum without a hierarchy in the Yukawa coupling constants, the former as a carefull balance between one universal see-saw and two radiative mechanisms.

7 pages, 2 figures, accepted for publication in Phys. Rev. D1

References in corpus (1)

• Interesting radiative patterns of neutrino mass in an SU(3)_C X SU(3)_L X U(1)_X model with right-handed neutrinos

Cited by in corpus (6)

• From the trees to the forest: a review of radiative neutrino mass models
• Bilepton effects on the WWV^* vertex in the 331 model with right-handed neutrinos via a SU_L(2)XU_Y(1) covariant quantization scheme
• Phenomenology of the $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ model with exotic charged leptons
• Charged and Neutral Currents in a 3-3-1 Model with Right-Handed Neutrinos
• Stability of the Scalar Potential and Symmetry Breaking in the Economical 3-3-1 Model
• Systematic study of the $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ local gauge symmetry