Non-perturbative improvement of lattice QCD at large momenta
arXiv:hep-lat/0106003 · doi:10.1016/S0550-3213(01)00342-X
Abstract
We propose a method to improve lattice operators composed of Wilson fermions which allows the removal of all corrections of $O(a)$, including those proportional to the quark mass. It requires off-shell improvement of quark fields and composite operators, which is achieved by studying the behaviour of quark and gluon correlation functions at large momenta.
28 pages, plain Latex. Corrected misleading reference. Version to appear in NPB