====== TTP06-08 Dimensional Reduction applied to QCD at three and four loops ======
 
 
   <hidden TTP06-08  Dimensional Reduction applied to QCD at three and four loops >  Dimensional Reduction is applied to \qcd{} in order to compute various
   renormalization constants in the \drbar{} scheme at higher orders in
   perturbation theory. In particular, the $\beta$ 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 $\varepsilon$-scalars and the additional
   couplings which have to be considered.
 </hidden>
|**R. Harlander, P. Kant, L. Mihaila, M. Steinhauser**  | 
|**  JHEP  09 053 2006  **  |
| {{preprints:2006:ttp06-08.pdf|PDF}} {{preprints:2006:ttp06-08.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0607240|arXiv]]   |
| |