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arXiv · 1009.4164

Constraining the $g'_1$ coupling in the minimal $B-L$ Model

Lorenzo Basso·Stefano Moretti·Giovanni Marco Pruna
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Abstract

We have combined the perturbative unitarity and the renormalisation group equations arguments in order to find a dynamical way to constrain the $g'_1$ coupling of the minimal $B-L$ extension of the Standard Model. We have analysed the role of the $g'_1$ coupling evolution in the perturbative stability of the two-to-two body scattering amplitudes of the vector boson and scalar sectors of the model and we have shown that the perturbative unitarity imposes an upper bound on the $B-L$ gauge coupling. We have made a comparison between this criterion and the triviality arguments, showing that our procedure substantially refines the triviality bounds.

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Lorenzo Basso, Stefano Moretti, Giovanni Marco Pruna. 2012-01-13. Constraining the $g'_1$ coupling in the minimal $B-L$ Model. https://doi.org/10.1088/0954-3899%2F39%2F2%2F025004

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