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arXiv · 0810.5547

Seesaw Neutrino Mass and New U(1) Gauge Symmetry

Rathin Adhikari·Jens Erler·Ernest Ma
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Abstract

The three electroweak doublet neutrinos $ν_{e,μ,τ}$ of the Standard Model may acquire small seesaw masses, using either three Majorana fermion singlets $N$ or three Majorana fermion triplets $(Σ^+,Σ^0,Σ^-)$. It is well-known that the former accommodates the U(1) gauge symmetry $B-L$. It has also been shown some years ago that the latter supports a new $U(1)_X$ gauge symmetry. Here we study two variations of this $U(1)_X$, one for two $N$ and one $Σ$, the other for one $N$ and two $Σ$. Phenomenological consequences are discussed.

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Rathin Adhikari, Jens Erler, Ernest Ma. 2009-02-28. Seesaw Neutrino Mass and New U(1) Gauge Symmetry. https://doi.org/10.1016/j.physletb.2009.01.017

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