Renormalisation of one-link quark operators for overlap fermions with Liischer-Weisz gauge action

摘要

We compute lattice renormalisation constants of one-link quark operators (i.e., operators with one covariant derivative) for overlap fermions and Luscher-Weisz gauge action in one-loop perturbation theory. Among others, such operators enter the calculation of moments of polarised and unpolarised hadron structure functions. Results are given for beta = 8.45, beta = 8.0 and mass parameter rho = 1.4, which are commonly used in numerical simulations. We apply mean field (tadpole) improvement to our results. (c) 2005 Elsevier B.V. All rights reserved.