The small $x$ behaviour of $g_1$

Abstract

We discuss the small $x$ behaviour of the spin dependent structure function $g_1$. We find a contribution from the exchange of two non-perturbative gluons which behaves as $\sim (2\ln \frac{1}{x}-1)$.

Comments: 6 pages plus 2 figures, uuencoded ps file, Cavendish preprint HEP 94/4, DAMTP 94/50