On the Radiatively Induced Lorentz and CPT Violating Chern-Simons Term

Abstract

The radiatively induced Lorentz and CPT violating Chern-Simons terms in QED is calculated based on the recently developed loop regularization method [Y.L. Wu, Int.J.Mod.Phys.A18 (2003) 5363, hep-th/0209021; Y.L. Wu, Mod.Phys.Lett.A19 (2004) 2191, hep-th/0311082] for quantum field theories. It enables us to make general comments on the various results in literature and obtain a consistent result when simultaneously combining the evaluation for the chiral anomaly which has a unique form once the vector current is kept conserved.

10 pages, no figures, published version

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• Anomaly and Anomaly-Free Treatment of QFTs Based on Symmetry-preserving Loop Regularization

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