On perturbative aspects of a nonminimal Lorentz-violating QED with CPT-odd dimension-5 terms
arXiv:2104.05681 · doi:10.1140/epjc/s10052-021-09768-4
Abstract
We consider the Lorentz-violating extended QED involving all nonminimal dimension-5 additive CPT-odd terms. For this theory, we investigate the possibility of generating the Carroll-Field-Jackiw (CFJ) term of the first order in any of these nonminimal couplings. This term is demonstrated to vanish in certain regularization schemes. We also study the question of higher-derivative divergent contributions and demonstrate that they can be eliminated by considering a given proportionality between the coefficients.
13 pages, version accepted to European Physical Journal C
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