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arXiv · 1508.01200

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

Alfredo Aranda·Eduardo Peinado
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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

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Alfredo Aranda, Eduardo Peinado. 2016-01-06. A new radiative neutrino mass generation mechanism with higher dimensional scalar representations and custodial symmetry. https://doi.org/10.1016/j.physletb.2016.01.007

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