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

作者：Aranda Alfredo; Peinado Eduardo^*

来源：Physics Letters B, 2016, 754: 11-13.

DOI：10.1016/j.physletb.2016.01.007

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 Z(2) that guarantees the preservation of custodial symmetry. The phenomenology of the setup is rather rich and includes a dark matter candidate.

• 出版日期2016-3-10