A New Look at the Axial Anomaly in Lattice QED with Wilson Fermions

Details A New Look at the Axial Anomaly in Lattice QED with Wilson Fermions A New Look at the Axial Anomaly in Lattice QED with Wilson Fermions

1998-03-30

arxiv.org/abs/hep-lat/9803026v2

Phys.Rev. D58 (1998) 074502

Physics

High Energy Physics

High Energy Physics - Lattice

1 figure, LaTeX, 18 pages

Scientific paper

10.1103/PhysRevD.58.074502

By carrying out a systematic expansion of Feynman integrals in the lattice spacing, we show that the axial anomaly in the U(1) lattice gauge theory with Wilson fermions, as determined in one-loop order from an irrelevant lattice operator in the Ward identity, must necessarily be identical to that computed from the dimensionally regulated continuum Feynman integrals for the triangle diagrams.

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