On the anomalies in Lorentz-breaking theories
High Energy Physics - Theory
2017-09-20 v3
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.
Keywords
Cite
@article{arxiv.1505.04047,
title = {On the anomalies in Lorentz-breaking theories},
author = {A. P. Baeta Scarpelli and T. Mariz and J. R. Nascimento and A. Yu. Petrov},
journal= {arXiv preprint arXiv:1505.04047},
year = {2017}
}
Comments
17 pages, final version including corrections made in Errata