2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38574We calculate the $O(a)$ improvement coefficient for the axial-vector current using the nonperturbative method proposed by the LANL group. Results for the coefficient in the range $β=5.93$ to 6.2 are presented. We find $c_A$ is close to the 1-loop tadpole-improved perturbative value. In addition, scaling of the pseudoscalar decay constant and renormalised quark mass is improved compared to that obtained using the (larger) $c_A$ values obtained by the ALPHA collaboration.Lattice2001(improvement), 3 pages, 3 postscript figures, espcrc2.styHigh Energy Physics - Latticetext