Radiatively-Induced Lorentz and CPT Violating Chern-Simons Term in QED

Details Radiatively-Induced Lorentz and CPT Violating Chern-Simons Term in QED Radiatively-Induced Lorentz and CPT Violating Chern-Simons Term in QED

1999-05-13

arxiv.org/abs/hep-th/9905095v1

Phys.Lett.B461:138-141,1999

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, RevTex, no figure

Scientific paper

10.1016/S0370-2693(99)00822-9

We calculate the induced Lorentz- and CPT-violating Chern-Simons term arising from the Lorentz- and CPT-violating sector of quantum electrodynamics with a $b_\mu\bar{\psi}\gamma^\mu\gamma_5\psi$ term. The result to all orders in $b$ coincides with the previous linear-in-$b$ calulation by Chung and Oh [hep-th/9812132] as well as Jackiw and Kosteleck\'{y} [Phys. Rev. Lett. {\bf 82}, 3572 (1999)], since all higher order terms vanish.

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