arXiv:hep-lat/0110201·v1·High Energy Physics — Lattice
The Schroedinger functional coupling in quenched QCD at low energies
Jochen Heitger🇩🇪 · Hubert Simma🇩🇪 · Rainer Sommer🇩🇪 · Ulli Wolff🇩🇪
Abstract
Existing non-perturbative computations of the running coupling of quenched QCD in the Schroedinger functional scheme are extended to scales mu lying much deeper in the low-energy regime. We are able to reach 1/mu ~ 0.9 fm, where a significant deviation from its perturbative evolution is observed.
Comments: Lattice2001(improvement), 3 pages, latex2e, 5 Postscript figures, uses epsfig, amssymb and espcrc2