SMALL X-BEHAVIOR OF THE CHIRALLY-ODD PARTON DISTRIBUTION H(1)(X,Q(2))

The small x behaviour of the structure function h(1)(x, Q(2)) is studi ed within the leading logarithmic approximation of perturbative QCD. T here are two contributions relevant at small x. The leading one behave s like (1/x)(0) i.e. it is just a constant in this limit. The second c ontribution, suppressed by one power of x, includes the terms summed b y the GLAP equation. Thus for h(1)(x, Q(2)) the GLAP asymptotics and R egge asymptotics are completely different, making h(1)(x, Q(2)) quite an interesting quantity for the study of small x physics.