Phenomenology of the SU(3)_c X SU(3)_L X U(1)_X model with right-handed neutrinos

Abstract

A phenomenological analysis of the three-family local gauge group $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ with right-handed neutrinos 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, produces a quark mass spectrum without hierarchies in the Yukawa coupling contants. 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.

RevTeX, 10 pages, 4 figures. v2: 13 pages. Substantial changes. New section about RGE analysis. Experimental data updated. v3: Discussions about bounds from unitarity violation of the CKM matrix and from FCNC included. Accepted for publication in Eur. Phys. J. C

References in corpus (2)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Atomic Parity Violation : Principles, Recent Results, Present Motivations

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