Dimensional Reduction applied to QCD at three loops
R. Harlander, P. Kant, L. Mihaila, M. Steinhauser
Abstract
Dimensional Reduction is applied to in order to compute various renormalization constants in the scheme at higher orders in perturbation theory. In particular, the β function and the anomalous dimension of the quark masses are derived to three-loop order. Special emphasis is put on the proper treatment of the so-called ε-scalars and the additional couplings which have to be considered.
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