TTP07-13 Dimensional reduction applied to QCD at three loops.

TTP07-13 Dimensional reduction applied to QCD at three loops.

TTP07-13 Dimensional reduction applied to QCD at three loops.

Recent developments in higher order calculations within the framework of Dimensional Reduction, the preferred regularization scheme for supersymmetric theories, are reported on. Special emphasis is put on the treatment of evanescent couplings, the equivalence to Dimensional Regularization, and the evaluation of $\alpha_s(M_{\rm GUT})$ from $\alpha_s(M_{\rm Z})$.

R. Harlander, P. Kant, L. Mihaila, M. Steinhauser
Proceedings of the 15th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2007) Munich, Germany, 16-20 Apr 2007
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