Scalar and axial matrix elements of the nucleon: sea quark content

Abstract

Sea quark contributions to the scalar density and the axial current matrix elements of the nucleon are studied in lattice qcd with two flavours of dynamical wilson fermions. the results are compared to trends in heavy quark mass expansions, and contrasted with the numbers obtained using dynamical staggered fermions.

Comments: 3 pages, to appear in lat91 proceedings