Abstract
In this paper we show that the canonical seesaw mechanism can naturally be implemented in a particular class of electroweak SU (4)L⊗ U (1)Ygauge models. The resulting neutrino mass spectrum is determined by just tuning a unique free parameter a within the algebraical method of treating gauge models with high symmetries proposed several years ago by Cotăescu. All the Standard Model phenomenology is preserved, being unaffected by the new physics occurring at a high breaking scale m ~ 1011GeV .
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