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arXiv · hep-ph/0611082

Lepton masses and mixing without Yukawa hierarchies

William A. Ponce·Oscar Zapata
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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.

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William A. Ponce, Oscar Zapata. 2006-11-07. Lepton masses and mixing without Yukawa hierarchies. https://doi.org/10.1103/physrevd.74.093007

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