Fermion decoupling and the Axial Anomaly on the Lattice
classification
✦ hep-lat
keywords
anomalyaxialfermionlatticeadler-bell-jackiwcalculatecancelsdecoupling
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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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