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

H. J. Rothe·Neda Sadooghi
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Abstract

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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H. J. Rothe, Neda Sadooghi. 1998-06-05. A New Look at the Axial Anomaly in Lattice QED with Wilson Fermions. https://doi.org/10.1103/physrevd.58.074502

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