Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1993-09-13
Nucl.Phys. B413 (1994) 481-502
Physics
High Energy Physics
High Energy Physics - Lattice
pages 0-27, ps-file 255491 bytes, preprint DESY 93-114 (CERN-TH 6996/93)
Scientific paper
10.1016/0550-3213(94)90629-7
A non-perturbative finite-size scaling technique is used to study the evolution of the running coupling (in a certain adapted scheme) in the SU(3) Yang-Mills theory. At low energies contact is made with the fundamental dynamical scales, such as the string tension K, while at larger energies the coupling is shown to evolve according to perturbation theory. In that regime the coupling in the MS-bar scheme of dimensional regularization is obtained with an estimated total error of a few percent.
Luescher Martin
Sommer Rainer
Weisz Peter
Wolff Ulli
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