Effect of absorptive corrections on inclusive parton distributions

G. Watt , A.D. Martin , M.G. Ryskin

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classification ✦ hep-ph

keywords absorptivecorrectionspartondistributiondistributionseffectgluonaccount

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We study the effect of absorptive corrections due to parton recombination on the parton distributions of the proton. A more precise version of the GLRMQ equations, which account for non-linear corrections to DGLAP evolution, is derived. An analysis of HERA F_2 data shows that the small-x gluon distribution is enhanced at low scales when the absorptive effects are included, such that a negative gluon distribution at 1 GeV is no longer required.

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Effect of absorptive corrections on inclusive parton distributions

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