====== TTP08-34 Fermionic contributions to the three-loop static potential ====== We consider the three-loop corrections to the static potential which are induced by a closed fermion loop. For the reduction of the occurring integrals a combination of the Gr\"obner and Laporta algorithm has been used and the evaluation of the master integrals has been performed with the help of the Mellin-Barnes technique. The fermionic three-loop corrections amount to 2% of the tree-level result for top quarks, 8% for bottom quarks and 27% for the charm quark system. |**Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser** | |** Phys.Lett. B668 293-298 2008 ** | | {{preprints:2008:ttp08-34.pdf|PDF}} {{preprints:2008:ttp08-34.ps|PostScript}} [[http://arxiv.org/abs/0809.1927|arXiv]] | | |