Fermion Interactions in the Wilson Yukawa Approach for Lattice Chiral Gauge Theories

Details Fermion Interactions in the Wilson Yukawa Approach for Lattice Chiral Gauge Theories Fermion Interactions in the Wilson Yukawa Approach for Lattice Chiral Gauge Theories

1992-07-18

arxiv.org/abs/hep-lat/9207018v1

Prog.Theor.Phys. 88 (1992) 455-466

Physics

High Energy Physics

High Energy Physics - Lattice

16 pages (LaTex, no figures), UTHEP-241

Scientific paper

10.1143/PTP.88.455

We consider fermion-gauge couplings in the Wilson-Yukawa approach for lattice chiral gauge theories. At the leading order of a fermionic hopping parameter expansion we find that the fermion-gauge coupling has a chiral and tree-like structure. We argue that this fermion-gauge coupling remains non-zero in the continuum limit taken in the Higgs phase. Possible fermion-scalar couplings in this approach are considered. We also evaluate the fermion interaction with an external gauge field in the slightly modified model and show that it has a chiral structure in general.

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