Research PapersNo Access
On the anomalies in Lorentz-breaking theories
https://doi.org/10.1142/S0217751X16500639Cited by:7 (Source: Crossref)
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 new ambiguous Carroll–Field–Jackiw terms are induced in the effective action.
PACS: 11.30.Cp, 11.30.Rd
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