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Constraining the $g'_1$ coupling in the minimal $B-L$ Model | | Lorenzo Basso
; Stefano Moretti
; Giovanni Marco Pruna
; | | Date: |
21 Sep 2010 | | 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. | | Source: | arXiv, 1009.4164 | | Services: | Forum | Review | PDF | Favorites | |
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