Radiatively induced Lorentz-violating operator of mass dimension five in QED
arXiv:1010.5013 · doi:10.1103/PhysRevD.83.045018
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 $g^{λμν}$. 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