The seesaw mechanism at TeV scale in the 3-3-1 model with right-handed neutrinos

Details The seesaw mechanism at TeV scale in the 3-3-1 model with right-handed neutrinos The seesaw mechanism at TeV scale in the 3-3-1 model with right-handed neutrinos

2008-06-18

arxiv.org/abs/0806.3087v1

Eur.Phys.J.C58:455-461,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

about 13 pages, no figures

Scientific paper

10.1140/epjc/s10052-008-0749-5

We implement the seesaw mechanism in the 3-3-1 model with right-handed neutrinos. This is accomplished by the introduction of a scalar sextet into the model and the spontaneous violation of the lepton number. We identify the Majoron as a singlet under $SU_L(2)\otimes U_Y(1)$ symmetry, which makes it safe under the current bounds imposed by electroweak data. The main result of this work is that the seesaw mechanism works already at TeV scale with the outcome that the right-handed neutrino masses lie in the electroweak scale, in the range from MeV to tens of GeV. This window provides a great opportunity to test their appearance at current detectors, though when we contrast our results with some previous analysis concerning detection sensitivity at LHC, we conclude that further work is needed in order to validate this search.

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