| Issue |
EPL
Volume 143, Number 6, September 2023
|
|
|---|---|---|
| Article Number | 64001 | |
| Number of page(s) | 7 | |
| Section | Nuclear and plasma physics, particles and fields | |
| DOI | https://doi.org/10.1209/0295-5075/acf51e | |
| Published online | 22 September 2023 | |
Scale anomaly in a Lorentz and CPT-violating quantum electrodynamics
1 Instituto Federal do Amazonas, Campus Eirunepé - 69880-000, Eirunepé, AM, Brasil
2 Universidade Federal do Triângulo Mineiro, Campus Iturama - 38280-000, Iturama, MG, Brasil
(a) E-mail: joilson.porto@ifam.edu.br
(b) E-mail: alexandre.vieira@uftm.edu.br (corresponding author)
Received: 24 May 2023
Accepted: 30 August 2023
We compute the classical and the quantum breaking of the dilatation current in the minimal Lorentz and CPT-violating quantum electrodynamics. At the classical level, scale symmetry is broken by the general mass term 
and the Chern-Simons–like term. At the quantum level, it is broken by all expected observable fermion operators in the massless limit.
© 2023 EPLA
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