Regular Article - Theoretical Physics
On perturbative aspects of a nonminimal Lorentz-violating QED with CPT-odd dimension-5 terms
Instituto de Física, Universidade Federal de Alagoas, 57072-900, Maceió, Alagoas, Brazil
2 Departamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970, João Pessoa, Paraíba, Brazil
Accepted: 21 October 2021
Published online: 6 November 2021
We consider the Lorentz-violating extended QED involving all nonminimal dimension-5 additive CPT-odd terms. For this theory, we investigate the generation of the Carroll–Field–Jackiw (CFJ) term and its higher-derivative counterparts of the first order in any of these nonminimal couplings. The CFJ term is demonstrated to vanish in the dimensional regularization scheme. 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.
© The Author(s) 2021
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