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Three-loop {\overline{\mbox{MS}}} renormalization of QED in the 't Hooft–Veltman gauge
2007
Journal of Physics A: Mathematical and Theoretical
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Quantum electrodynamics (QED) fixed in the 't~Hooft-Veltman gauge is renormalized to three loops in the MSbar scheme. The beta-functions and anomalous dimensions are computed as functions of the usual QED coupling and the additional coupling, xi, which is introduced as part of the nonlinear gauge fixing condition. Similar to the maximal abelian gauge of quantum chromodynamics, the renormalization of the gauge parameter is singular.
doi:10.1088/1751-8113/40/46/011
fatcat:ma4ux5vorzaprnwgfnrih56e7e