Phenomenology of the $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ model with exotic charged leptons

Abstract

A phenomenological analysis of the three-family model based on the local gauge group $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ with exotic charged leptons, is carried out. Instead of using the minimal scalar sector able to break the symmetry in a proper way, we introduce an alternative set of four Higgs scalar triplets, which combined with an anomaly-free discrete symmetry, produce quark and charged lepton mass spectrum without hierarchies in the Yukawa coupling constants. We also embed the structure into a simple group and show some conditions to achieve a low gauge coupling unification, avoiding possible conflict with proton decay bounds. By using experimental results from the CERN-LEP, SLAC linear collider, and atomic parity violation data, we update constraints on several parameters of the model.

18 pages, 6 figures. Accepted for publication in Physical Review D

References in corpus (2)

• Interesting radiative patterns of neutrino mass in an SU(3)_C X SU(3)_L X U(1)_X model with right-handed neutrinos
• Lepton masses and mixing without Yukawa hierarchies

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• Lepton number violation in 331 models
• Effects of quark family nonuniversality in SU(3)_c X SU(4)_L X U(1)_x models
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• Systematic study of the $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ local gauge symmetry