Azimuthal correlation in DIS

Abstract

We introduce a new angular correlation in DIS process and study its differential distribution in the region in which the observable is small. We perform a perturbative resummation at single logarithmic accuracy and estimate leading non-perturbative power corrections.

Comments: 4 pages, 2 figures. Talk presented by Giuseppe Marchesini at the XXXVIIth Rencontres de Moriond `QCD and high energy hadronic interactions', Les Arcs, France, and by Andrea Banfi at the X International Workshop on Deep Inelastic Scattering (DIS2002), Krakow, Poland