${\gamma }_5$ algebra ambiguities in Feynman amplitudes: momentum routing invariance and anomalies in $D=4$ and $D=2$

A. C. D. Viglioni, A. L. Cherchiglia, A. R. Vieira +2

We address the subject of chiral anomalies in two and four dimensional theories. Ambiguities associated with the ${\gamma }_5$ algebra within divergent integrals are identified, even thoug…