1994/11/30 by D. S. Henty, C. Parrinello
Physics and Astronomy · #hep-lat
published as Nucl.Phys.Proc.Suppl. 42 (1995) 264-266 · 3 pages, uuencoded PostScript file, to appear in the Proceedings of the 1994 Symposium on Lattice Field Theory
arxiv created 1994/11/30 · arxiv updated 2009/12/01
We provide numerical results for the running coupling in SU(3) Yang-Mills theory as determined from an analysis of lattice two and three-point gluon correlation functions. The coupling is evaluated directly, from first principles, by defining suitable renormalisation constants from the lattice triple gluon vertex and gluon propagator. For momenta larger than 2 GeV, the coupling is found to run according to the 2-loop asymptotic formula. The influence of lattice artifacts on the results appears negligible within the precision of our measurements, although further work on this point is in progress.