Anomalous pion decay revisited
classification
✦ hep-ph
keywords
anomalousapplieddimensionalregularizationalwaysamplitudeaxial-vector-vectorcalculate
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An implicit four dimensional regularization is applied to calculate the axial-vector-vector anomalous amplitude. The present technique always complies with results of Dimensional Regularization and can be easily applied to processes involving odd numbers of $\gamma_5$ matrices. This is illustrated explicitely in the example of this letter.
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