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arXiv · 1708.07423

Axion field induces exact symmetry

P. Mitra
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Abstract

While no regularization is consistent with the anomalous chiral symmetry which occurs for massless fermions, the artificial axion-induced symmetry for massive fermions is shown here to be consistent with a standard regularization, even in curved spacetime, so that it can be said to have no anomaly in gauge or gravitational fields. Implications for theta terms are pointed out.

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P. Mitra. 2017-08-23. Axion field induces exact symmetry. https://doi.org/10.1088/2399-6528%2Faa81b7

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