Verification of O(a) improvement

Abstract

The status of simulations using the non-perturbatively O(a) improved Wilson action in the quenched approximation is reviewed. The impact of non-perturbative improvement on the hadronic mass spectrum and the size of residual lattice artefacts in spectral quantities and decay constants are assessed.

Comments: Plenary talk presented at LATTICE '97, 6 pages, LaTeX, espcrc2.sty, 6 postscript files, to be included with epsf