paper

Scale anomaly in a Lorentz and CPT-violating Quantum Electrodynamics

arXiv:2305.12610 · doi:10.1209/0295-5075/acf51e

Abstract

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 \barψMψand the Chern-Simons-like term. At the quantum level, it is broken by all expected observable fermion operators in the massless limit.

arXiv comment9 pages, 1 figure

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