Exact calculation of the radiatively-induced Lorentz and CPT violation in QED

Abstract

Radiative corrections arising from the axial coupling of charged fermions to a constant vector b_μcan induce a Lorentz- and CPT-violating Chern-Simons term in the QED action. We calculate the exact one-loop correction to this term keeping the full b_μdependence, and show that in the physically interesting cases it coincides with the lowest-order result. The effect of regularization and renormalization and the implications of the result are briefly discussed.

LaTex, 8 pages; minor corrections

Cited by in corpus (180)

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