Study of the Strongly Interacting Higgs Physics Model with Heavy Fermions

Details Study of the Strongly Interacting Higgs Physics Model with Heavy Fermions Study of the Strongly Interacting Higgs Physics Model with Heavy Fermions

1995-06-21

arxiv.org/abs/hep-ph/9506384v1

Phys.Lett. B357 (1995) 109-118

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, LaTeX+epsfig, 2 figures, uuencoded

Scientific paper

10.1016/0370-2693(95)00884-N

We study the effect of a possible fourth heavy generation of fermions on the Higgs sector of the standard model. We show, from the violation of elastic unitarity, that the scale of strong interactions is well below 1 TeV even with a Higgs mass as low as 500 GeV provided the fourth generation fermion mass is equal or larger than the Higgs mass. The diagonal Pade approximant method is then used to unitarize the partial wave amplitudes. It is found that, for the fourth generation fermion masses which are comparable to or larger than the Higgs mass, the Landau ghosts in the I=0 and I=2 channels of the reconstructed amplitudes move too close to the physical region to be accepted.

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