Lorentz and CPT Violating Chern-Simons Term in the Derivative Expansion of QED

Details Lorentz and CPT Violating Chern-Simons Term in the Derivative Expansion of QED Lorentz and CPT Violating Chern-Simons Term in the Derivative Expansion of QED

1998-12-15

arxiv.org/abs/hep-th/9812132v4

Phys.Rev. D60 (1999) 067702

Physics

High Energy Physics

High Energy Physics - Theory

6 pages, no figure, RevTex, A revised version

Scientific paper

10.1103/PhysRevD.60.067702

We calculate by the method of dimensional regularization and derivative
expansion the one-loop effective action for a Dirac fermion with a
Lorentz-violating and CPT-odd kinetic term in the background of a gauge field.
We show that this term induces a Chern-Simons modification to Maxwell theory.
Some related issues are also discussed.

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