Neutrino masses in the SU(4)L U(1)X electroweak extension of the standard model
Abstract
We study the neutrino mass generation in the SU(4)L U(1)X electroweak extension of the standard model by considering non-renormalizable dimension five effective operators. It is shown that there exist two topologies for the realizations of such an operator at the tree-level and for one of the three-family models is explore the neutrino phenomenology after extending its particle content with an SU(4)L fermion singlet and a scalar decuplet. Constraints in the available parameters space of the model are partially discussed.
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