Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Second-Order Radiative Corrections to the Axial Vector Anomaly   We re-examine the historically important decay of the neutral pion into two
photons. Schwinger's Equivalence Theorem is confirmed. We then consider
radiative corrections to the famous Adler-Bell-Jackiw (ABJ) anomaly. The result
depends crucially on a physically motivated regularization scheme. Our approach
is largely based on Schwinger's source (dispersion) method.

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The categories of this paper are: astro-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: eess
27
The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: math
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The categories of this paper are: solv-int