Numerical simulation of heavy fermions in an SU(2)_L x SU(2)_R symmetric Yukawa model

Details Numerical simulation of heavy fermions in an SU(2)_L x SU(2)_R symmetric Yukawa model Numerical simulation of heavy fermions in an SU(2)_L x SU(2)_R symmetric Yukawa model

1992-07-21

arxiv.org/abs/hep-lat/9207021v1

Nucl.Phys.B397:431-450,1993

Physics

High Energy Physics

High Energy Physics - Lattice

15 pp + 11 Figures appended as Postscript files

Scientific paper

10.1016/0550-3213(93)90350-X

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 $\rm SU(2)_L \otimes SU(2)_R$ symmetric Yukawa model with mirror fermions. The behaviour of fermion and boson masses is investigated at infinite bare quartic coupling on $4^3 \cdot 8$, $6^3 \cdot 12$ and $8^3 \cdot 16$ 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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