Lattice Renormalization of Quark Operators
arXiv:hep-lat/9710052 · doi:10.1016/S0920-5632(97)00924-9
Abstract
We have technically improved the non-perturbative renormalization method, proposed by Martinelli et al., by using quark momentum sources and sinks. Composite two-fermion operators up to three derivatives have been measured for Wilson fermions and Sheikholeslami-Wohlert improved fermions in the quenched approximation. The calculations are performed in the Landau gauge on 16^3x32 lattices at beta = 6.0 for 3 kappa values in each case. The improved sources greatly decrease the statistical noise. We extract and discuss here renormalization factors for local operators and moments of the structure functions for Wilson fermions.
3 pages, Latex, 6 figures. epsf.sty and espcrc2.sty needed. Talk given at Lattice97
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- The operator product expansion on the lattice
- Composite operators in lattice QCD: nonperturbative renormalization