Inclusive dijet production at HERA: Direct photon cross sections in next-to-leading order QCD

摘要

We have calculated inclusive two-jet cross sections in next-to-leading order QCD for direct photoproduction in low Q(sup 2) ep collisions at HERA. Infrared and collinear singularities in real and virtual contributions are cancelled with the phase space slicing method. Analytical formulas for the different contributions giving the dependence on the slicing parameter are presented. Various one- and two-jet distributions have been computed demonstrating the flexibility of the method. (orig.)