Seesaw tau lepton mass and calculable neutrino masses in a 3-3-1 model

Abstract

In a version of the 3-3-1 model proposed by Duong and Ma the introduction of the scalar sextet for giving mass to the charged leptons is avoided by adding a singlet charged lepton. We show that in this case the $\tau$ lepton gains mass through a seesaw--like mechanism. Besides we show how to generate neutrino masses at the tree and at the 1-loop level with the respective Maki-Nakagawa-Sakata leptonic mixing matrices.

revtex, 5 pages and one eps figure. Published version

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• Custodial Symmetry and Extensions of the Standard Model