Dirac neutrinos in a $SU(2)$ left-right symmetric model

Abstract

In a left-right symmetric model, with the scalar sector consisting of several bi-doublets and two doublets, neutrinos remain as Dirac fermions in all order in perturbation theory. Although with only two bi-doublets the neutrino masses need still a fine tuning, this is not the case when a third bi-doublet is added. One of the scalar doublet may be of the inert type since it is protected by the left-right symmetry.

arXiv comment27 pages, no figures

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Cited by in corpus (4)

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• Neutrino 2020: Theory Outlook
• Explicit parity violation in $SU(2{)}_L\otimes SU(2{)}_R\otimes U(1{)}_{B-L}$ models