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arXiv · 1903.12126

Neutrino mass via linear seesaw, 331-model and Froggatt-Nielsen mechanism

Katri Huitu·Niko Koivunen·Timo J. Kärkkäinen
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Abstract

In this paper, we introduce an extension of the Standard Model, based on SU(3)$_\mathrm{C}\times $SU(3)$_\mathrm{L}\times $U(1)$_X$ gauge symmetry (331-model). The 331-models traditionally explain the number of fermion familes in nature. In our model the Froggatt-Nielsen mechanism is incorporated into the 331-setting in a particularly economical fashion. The model utilizes the both the Froggatt-Nielsen and linear seesaw mechanisms to explain the observed fermion mass hierarchies and lightness of neutrinos. In our numerical analysis we found that a $\sim$ 50 TeV new physics scale is able to reproduce correctly all the fermion masses and mixing matrices, including neutrino masses, mass squared differences and mixing matrix.

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Katri Huitu, Niko Koivunen, Timo J. Kärkkäinen. 2019-03-28. Neutrino mass via linear seesaw, 331-model and Froggatt-Nielsen mechanism. https://arxiv.org/abs/1903.12126

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