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Nonlinear kt factorisation: recent progress and perspectives

W. Schäfer

hep-pharXiv:hep-ph/0611070

Abstract

Hard scattering in a strongly absorptive regime requires a novel nonlinear kt -- 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.

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