A new approach to parton recombination in a QCD evolution equation

Abstract

Parton recombination is reconsidered in perturbation theory without using the AGK cutting rules in the leading order of the recombination. We use time-ordered perturbation theory to sum the cut diagrams, which are neglected in the GLR evolution equation. We present a set of new evolution equations including parton recombination.

25 pages, LaTex, 10 PS figures, submmitted to Nucl. Phys. B

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