Non-perturbative quark mass renormalization in quenched lattice QCD

The renormalization factor relating the bare to the renormalization group invariant quark masses is accurately calculated in quenched lattice QCD using a recursive finite-size technique. The result is presented in the form of a product of a universal factor times another factor, which depends on the details of the lattice theory but is easy to compute, since it does not involve any large scale differences. As a byproduct the Lambda-parameter of the theory is obtained with a total error of 8%.

Note:

36 pages, 8 postscript figures, LaTeX, typo corrected in Table 3 Report-no: DESY-98-154, OUTP-98-68-P Journal-ref: Nucl.Phys. B544 (1999) 669-698

11.15.Ha
12.38.Aw
12.38.Gc
14.65.Bt
Quantum chromodynamics (QCD)
Lattice gauge theory
Non-perturbative renormalization
Quark masses
Λt-parameter
lattice field theory: Lambda parameter

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