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| ====== TTP09-13 The SUSY-QCD beta-function to three loops ====== |
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| <hidden TTP09-13 The SUSY-QCD beta-function to three loops > A number of $\drbar$ renormalization constants in softly broken |
| \susy{}-\qcd{} are evaluated to three-loop level: the wave function |
| renormalization constants for quarks, squarks, gluons, gluinos, ghosts, |
| and \epscalar{}s, and the renormalization constants for the quark and |
| gluino mass as well as for all cubic vertices. The latter allow us to |
| derive the corresponding $\beta$ functions through three loops, all of |
| which we find to be identical to the expression for the gauge $\beta$ |
| function obtained by Jack, Jones, and North~\cite{Jack:1996vg} (see also |
| Ref.\,\cite{Pickering:2001aq}). This explicitely demonstrates the |
| consistency of \dred{} with \susy{} and gauge invariance, an important |
| pre-requisite for precision calculations in supersymmetric theories. |
| </hidden> |
| |**Robert Harlander, Luminita Mihaila, Matthias Steinhauser** | |
| |** Eur.Phys.J. C63 383-390 2009 ** | |
| | {{preprints:2009:ttp09-13.pdf|PDF}} {{preprints:2009:ttp09-13.ps|PostScript}} [[http://arxiv.org/abs/0905.4807|arXiv]] [[http://ttp.kit.edu/Progdata/ttp09/ttp09-13|Programs and Data]] | |
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