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Numerical simulation of heavy fermions in an SU(2)L x SU(2)R symmetric Yukawa model

C. Frick, L. Lin, I. Montvay, G. Munster, M. Plagge, T. Trappenberg, H. Wittig

hep-latarXiv:hep-lat/9207021

Abstract

An exploratory numerical study of the influence of heavy fermion doublets on the mass of the Higgs boson is performed in the decoupling limit of a chiral SU(2)L SU(2)R symmetric Yukawa model with mirror fermions. The behaviour of fermion and boson masses is investigated at infinite bare quartic coupling on 43 · 8, 63 · 12 and 83 · 16 lattices. A first estimate of the upper bound on the renormalized quartic coupling as a function of the renormalized Yukawa-coupling is given.

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