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
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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