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Non-perturbative quark mass renormalization

S. Capitani, M. Guagnelli, M. Luescher, S. Sint, R. Sommer, P. Weisz, H. Wittig

hep-latarXiv:hep-lat/9709125

Abstract

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.

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