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Pomeron fan diagrams with an infrared cutoff and running coupling

M. A. Braun

hep-pharXiv:hep-ph/0308320

Abstract

By direct numerical calculations the influence of a physically relevant infrared cutoff and running coupling on the gluon density and structure function of a large nucleus is studied in the perturbative QCD approach. It is found that the infrared cutoff changes the solutions very little. Running of the coupling produces a bigger change, considerably lowering both the saturation momentum and values of the structure functions.

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