paper

No radiative corrections to the Carroll-Field-Jackiw term beyond one-loop order

arXiv:2005.04637 · doi:10.1142/S0217751X21500330

Abstract

We demonstrate explicitly the absence of the quantum corrections to the Carroll-Field-Jackiw (CFJ) term beyond one-loop within the Lorentz-breaking CPT-odd extension of QED. The proof holds within two prescriptions of quantum calculations, with the axial vector in the fermion sector {}treated either as a perturbation or as a contribution in the exact propagator of the fermion field.

11 pages, 7 figures. New version with expanded discussion. The result of the paper does not change

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