paper

A new radiative neutrino mass generation mechanism with higher dimensional scalar representations and custodial symmetry

arXiv:1508.01200 · doi:10.1016/j.physletb.2016.01.007

Abstract

A new realization for radiative neutrino mass generation is presented. Based on the requirement of tree-level custodial symmetry and the introduction of higher (greater than two) dimensional representations for scalar fields, a specific scenario with a scalar septet is presented that generates neutrino Majorana masses radiatively. This is accomplished through an eleven dimensional operator that requires the addition of several scalar fields and a SU(2) 5-plet of new fermions, together with a Z2 that guarantees the preservation of custodial symmetry. The phenomenology of the setup is rather rich and includes a dark matter candidate

4 pages, 1 figure, references added, matches version to appear in Physics Letters B

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