O(A) IMPROVEMENT OF NUCLEON MATRIX-ELEMENTS

We report on preliminary results of a high statistics quenched lattice QCD calculation of nucleon matrix elements within the Symanzik improv ement programme. Using the recently determined renormalisation constan ts from the Alpha Collaboration we present a fully non-pertubative cal culation of the forward nucleon axial matrix element with O(a) lattice artifacts completely removed. Runs are made at beta = 6.0 and beta = 6.2, in an attempt to check scaling and O(a(2)) effects. We shall also briefly describe results for [x], the matrix element of a higher deri vative operator.