LATTICE RENORMALIZATION OF QUARK OPERATORS

Citation
M. Gockeler et al., LATTICE RENORMALIZATION OF QUARK OPERATORS, Nuclear physics. B, Proceedings supplement, 63, 1998, pp. 868-870
Citations number
5
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
09205632
Volume
63
Year of publication
1998
Pages
868 - 870
Database
ISI
SICI code
0920-5632(1998)63:<868:LROQO>2.0.ZU;2-B
Abstract
We have technically improved the non-perturbative renormalization meth od, proposed by Martinelli et al., by using quark momentum sources and sinks. Composite two-fermion operators up to three derivatives have b een measured for Wilson fermions and Sheikholeslami-Wohlert improved f ermions in the quenched approximation. The calculations are performed in the Landau gauge on 16(3)32 lattices at beta = 6.0 for 3 kappa valu es 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.