Nonlinear k_t factorisation: recent progress and perspectives

Abstract

Hard scattering in a strongly absorptive regime requires a novel nonlinear k_t -- factorization. Here we discuss two recent developments: firstly the evaluation of radiative corrections to single particle spectra, and secondly an extension of the formalism to address topological cross sections and unitarity cutting rules.

10 pages, 2 figs, talk given at Diffraction 2006, International Workshop on Diffraction in High-Energy Physics September 5-10, 2006, Adamantas, Milos island, Greece