| Issue |
EPL
Volume 123, Number 2, July 2018
|
|
|---|---|---|
| Article Number | 21001 | |
| Number of page(s) | 6 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/123/21001 | |
| Published online | 20 August 2018 | |
Higher-order one-loop contributions in Lorentz-breaking QED
1 Centro Federal de Educação Tecnológica - MG - Avenida Amazonas, 7675, 30510-000, Nova Gameleira, Belo Horizonte, MG, Brazil
2 Departamento de Fsica, Universidade Federal de Lavras - Caixa Postal 3037, 37200-000, Lavras, MG, Brazil
3 Instituto de Engenharia, Ciência e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri Avenida Manoel Bandeira, 460, 39440-000, Veredas, Janaúba, MG, Brazil
4 Departamento de Física, Universidade Federal da Paraíba - Caixa Postal 5008, 58051-970, João Pessoa, Paraíba, Brazil
Received: 19 June 2018
Accepted: 23 July 2018
We calculate higher-order quantum contributions in different Lorentz-violating parameters to the gauge sector of the extended QED. As a result of this one-loop calculation, some terms which do not produce corrections of first order in Lorentz-breaking parameters, contribute with nontrivial gauge-invariant quantum corrections of second order in these parameters.
PACS: 11.30.Cp – Lorentz and Poincaré invariance / 11.15.-q – Gauge field theories
© EPLA, 2018
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