Improved non-perturbative renormalization without
arXiv:hep-lat/0110021 · doi:10.1016/S0920-5632(01)01853-9
Abstract
Recently, a method for O(a) improvement of composite operators has been proposed which uses the large momentum behavior of fixed gauge quark and gluon correlation functions (G. Martinelli et al., hep-lat/0106003). A practical problem with this method is that a particular improvement coefficient, , which has a gauge non-covariant form, is difficult to determine. Here I work out the size of the errors made in improvement coefficients and physical quantities if one does not include the term.
3 pages. Lattice2001(improvement)