Top quark, heavy fermions and the composite Higgs boson

Details Top quark, heavy fermions and the composite Higgs boson Top quark, heavy fermions and the composite Higgs boson

2000-03-08

arxiv.org/abs/hep-ph/0003065v1

Commun.Theor.Phys.35:162-166,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages and 6 figures. This paper replaces and is an extended version of hep-ph/9602340 (published in Phys. Lett. B370(1996)2

Scientific paper

We study the properties of heavy fermions in the vector-like representation of the electro-weak gauge group $SU(2)_W\times U(1)_Y$ with Yukawa couplings to the standard model Higgs boson. Applying the renormalization group analysis, we discuss the effects of heavy fermions to the vacuum stability bound and the triviality bound on the mass of the Higgs boson. We also discuss the interesting possibility that the Higgs particle is composed of the top quark and heavy fermions. The bound on the composite Higgs mass is estimated using the method of Bardeen, Hill and Lindner, 150GeV$\leq m_H\leq$ 450GeV.

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