Non-perturbative results for improvement and renormalization constants needed for on-shell and off-shell O(a) improvement of bilinear operators composed of Wilson fermions are presented. The calculations have been done in the quenched approximation at beta=6.0, 6.2 and 6.4. To quantify residual discretization errors we compare our data with results from other non-perturbative calculations and with one-loop perturbation theory.
@article{arxiv.hep-lat/0509160,
title = {Scaling behavior of discretization errors in renormalization and improvement constants},
author = {Tanmoy Bhattacharya and Rajan Gupta and Weonjong Lee and Stephen R. Sharpe},
journal= {arXiv preprint arXiv:hep-lat/0509160},
year = {2009}
}
Comments
Published version that includes a section on notation