Radiative seesaw-type mechanism of quark masses in SU(3\)_{C}\otimes SU(3\)_{L}\otimes U\(1\)_{X}$

Abstract

We take up again the study of the mass spectrum of the quark sector in a model with gauge symmetry $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ (331). In a special type II-like 331 model, we obtain specific zero-texture mass matrices for the quarks which predict four massless quarks ($u,c,d,s$) and two massive quarks ($b,t$) at the electroweak scale ($\sim$ GeV). By considering the mixing between the SM quarks and new exotic quarks at large scales predicted by the model, we find that a third quark (associated to the charm quark) acquires a mass. The remaining light quarks ($u,d,s$) get small masses ($\sim$ MeV) via radiative corrections.

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Cited by in corpus (4)

• Lepton masses and mixing in $SU(3{)}_C\otimes SU(3{)}_L\otimes U(1{)}_X$ models with a $S_3$ flavor symmetry
• Fermion masses and mixings in an $SU(5)$ grand unified model with an extra flavor symmetry
• Muon Anomalous Magnetic Moment in a $SU(4)\otimes U(1{)}_N$ Model
• Radiatively generated hierarchy of lepton and quark masses