The electromagnetic gauge invariance in $SU(3{)}_L\otimes U(1{)}_N$ models of electroweak unification reexamined

V. Pleitez, M. D. Tonasse

Two models with $SU(3{)}_C\otimes SU(3{)}_L\otimes U(1{)}_N$ gauge symmetry are considered. We show that the masslessness of the photon does not prevent the neutrinos from acquiring Majo…