Radiatively induced Lorentz-violating operator of mass dimension five in QED

Abstract

The first higher derivative term of the photon sector of Lorentz-violating QED, with operator of mass dimension $d=5$, is radiatively induced from the fermion sector, in which contains a derivative term with the dimensionless coefficient $g^{\lambda \mu \nu }$. The calculation is performed perturbatively in the coefficient for Lorentz violation, and due to the fact that the contributions are quadratically divergent, we adopt dimensional regularization.

7 pages, revtex4; v2: references and a new section added, version to appear in Phys. Rev. D

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