We show that the renormalization factor relating the renormalization group invariant quark masses to the bare quark masses computed in lattice QCD can be determined non-perturbatively. The calculation is based on an extension of a finite-size technique previously employed to compute the running coupling in quenched QCD. As a by-product we obtain the Λ--parameter in this theory with completely controlled errors.
@article{arxiv.hep-lat/9709125,
title = {Non-perturbative quark mass renormalization},
author = {S. Capitani and M. Guagnelli and M. Luescher and S. Sint and R. Sommer and P. Weisz and H. Wittig},
journal= {arXiv preprint arXiv:hep-lat/9709125},
year = {2009}
}
Comments
Talk given at LATTICE '97, 6 pages, Latex source, 7 eps figures, needs epsfig