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Prog. Theor. Phys. Vol. 88 No. 3 (1992) pp. 455-466

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Invited Papers

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

Sinya Aoki

Institute of Physics, University of Tsukuba, Tsukuba 305

(Received July 22, 1992)

Abstract:

We consider fermion-gauge couplings in the Wilson-Yukawa approach for lattice chiral gauge theories. At the leading order of the 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.


URL : http://ptp.ipap.jp/link?PTP/88/455/
DOI : 10.1143/PTP.88.455

[ Full Text PDF : FREE ACCESS (982K) ] Citation:

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