Speaker
Dr
Andrei Kataev
(Institute for Nuclear Reserch of the Russian Academy of Sciences)
Description
The current knowledge on the three-loop approximation of the static
potential in QCD is reviewed . The results are used for the determination of the
4-th order approximation of the QCD $\beta$-function and for the $e^+e^-$-annihilation R-ratio in the V-scheme. The results are compared with the ones obtained in the
$\overline{MS}$-scheme and minimal MOM scheme in the Landau gauge. The common features
of the QED expression for the $\beta$-function in the V-scheme and MOM scheme are summarized.
Author
Dr
Andrei Kataev
(Institute for Nuclear Reserch of the Russian Academy of Sciences)
Co-author
Victor Molokoedov
(Moscow Institute of Physics and Technology State University)
