Speaker
Description
Neutrinos are massless in SM but one can introduce Majorana neutrino masses effectively through a dimension-five lepton number non-conserving operator $-\mathcal{L}_\nu^{d=5}=\frac{1}{\Lambda}(\overline{L}\Phi)(\Phi^TL^c)+h.c.$. The linear seesaw mechanism provides a interesting UV-completion of this operator realized in the simplest $SU(3)_c\otimes SU(2)_L\otimes U(1)_Y$ gauge structure. In addition to Standard Model particles, there are three quasi-
Dirac leptons, and a second, leptophilic, scalar doublet. Our proposal is consistent with electroweak precision tests, neutrino physics, rare decays, as well as restrictions from lepton flavour violation and collider experiments. Striking signatures are expected at colliders associated to the production of neutrino mass mediators.
| Session | Neutrino Physics |
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