Sum Rules for Nucleon Spin Structure Functions

Abstract

The uncertainties in the perturbative and higher twist corrections to the sum rules for ${\Gamma }_{p,n}$ are analyzed. The theoretical predictions for ${\Gamma }_{p,n}$ are compared with the whole set of experimental data and the restrictions on theoretical uncertainties was obtained. Suggestions for future experiments are given.

Comments: 12 pages, LATEX, no figures, talk at the Workshop "Prospects on Spin Physics at HERA