Triviality Bounds in Two-Doublet Models

Details Triviality Bounds in Two-Doublet Models Triviality Bounds in Two-Doublet Models

1993-01-08

arxiv.org/abs/hep-ph/9301222v1

Phys.Lett. B304 (1993) 152-158

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages (8 postscript figures in two files), BUHEP-93-2

Scientific paper

10.1016/0370-2693(93)91415-J

We examine perturbatively the two-Higgs-doublet extension of the \SM\ in the context of the suspected triviality of theories with fundamental scalars. Requiring the model to define a consistent effective theory for scales below a cutoff of $2\pi$ times the largest mass of the problem, as motivated by lattice investigations of the one-Higgs-doublet model, we obtain combined bounds for the parameters of the model. We find upper limits of 470 GeV for the mass of the light $CP$--even neutral scalar and 650--700 GeV for the other scalar masses.

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