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arXiv · 1505.04047

On the anomalies in Lorentz-breaking theories

A. P. Baeta Scarpelli·T. Mariz·J. R. Nascimento·A. Yu. Petrov
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Abstract

In this paper, we discuss the chiral anomaly in a Lorentz-breaking extension of QED which, besides the common terms that are present in the Standard Model Extension, includes some dimension-five nonminimal couplings. We find, using the Fujikawa formalism, that these nonminimal couplings induce new terms in the anomaly which depend on the Lorentz-violating parameters. Perturbative calculations are also carried out in order to investigate whether or not new ambiguous Carroll-Field-Jackiw terms are induced in the effective action.

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A. P. Baeta Scarpelli, T. Mariz, J. R. Nascimento, A. Yu. Petrov. 2015-05-15. On the anomalies in Lorentz-breaking theories. https://doi.org/10.1142/s0217751x16500639

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