Phenomenology of the SU(3)c⊗SU(3)L⊗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⊗SU(3)L⊗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 gauge group and show some conditions to achieve a low energy 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.
- Publication:
-
Physical Review D
- Pub Date:
- April 2007
- DOI:
- 10.1103/PhysRevD.75.075016
- arXiv:
- arXiv:hep-ph/0703300
- Bibcode:
- 2007PhRvD..75g5016S
- Keywords:
-
- 12.10.Dm;
- 12.15.Ff;
- 12.60.Cn;
- Unified theories and models of strong and electroweak interactions;
- Quark and lepton masses and mixing;
- Extensions of electroweak gauge sector;
- High Energy Physics - Phenomenology
- E-Print:
- 18 pages, 6 figures. Accepted for publication in Physical Review D