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Tree level unitarity and triviality bounds for two Higgs models

Apr, 1991

6 pages

Published in:

Phys.Lett.B 265 (1991) 371-376

Published: 1991

DOI:

10.1016/0370-2693(91)90068-2

Report number:

HU-TFT-91-16

View in:

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Abstract: (Elsevier)

We have derived the unitarity and triviality bounds for the two Higgs doublet version of the standard model by investigating at tree level the elastic s-wave amplitudes of various Higgs and would-be Goldstone boson scatterings. We have found that in order to respect unitarity at high energies one, and for a large range of parameters both, of the Higgses is lighter than 1 TeV. If the masses of both neutral Higgses exceeds the triviality bound of 1.09 TeV the perturbation will break down even at low energies.

electroweak interaction
Higgs particle: multiplet
multiplet: Higgs particle
doublet: 2
Goldstone particle
partial wave: elastic scattering
elastic scattering: partial wave
unitarity: violation
field theory: triviality
numerical calculations

References(12)

Figures(0)

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