Fermion decoupling and the Axial Anomaly on the Lattice

preprint1999arXivOpen access

Abstract

In the axial Ward identity of lattice QED we show that in the limit of infinite fermion mass m the pseudoscalar density term exactly cancels the Adler-Bell-Jackiw anomaly. Using this result we calculate the U(1) axial anomaly in a non-abelian gauge theory.

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