Anomalies from the covariant derivative expansion

نویسندگان

چکیده

We revisit the calculation of chiral anomalies for global and gauge symmetries in framework covariant derivative expansion (CDE). Due to presence UV divergences, result is an ambiguous quantity that depends on regularization procedure renormalization scheme. introduce a class regulators facilitate straightforward evaluation anomaly exclusively $d=4$ spacetime dimensions using CDE methodology. derive master formula integrates various known results into unified framework.

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ژورنال

عنوان ژورنال: Physical review

سال: 2023

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevd.107.116015