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arXiv · hep-ph/0406225

Simultaneous QCD analysis of diffractive and inclusive DIS data

A. D. Martin·M. G. Ryskin·G. Watt
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Abstract

We perform a NLO QCD analysis of deep-inelastic scattering data, in which we account for absorptive corrections. These corrections are determined from a simultaneous analysis of diffractive deep-inelastic data. The absorptive effects are found to enhance the size of the gluon distribution at small x, such that a negative input gluon distribution at Q^2 = 1 GeV^2 is no longer required. We discuss the problem that the gluon distribution is valence-like at low scales, whereas the sea quark distribution grows with decreasing x. Our study hints at the possible importance of power corrections for Q^2 \simeq 1--2 GeV^2.

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A. D. Martin, M. G. Ryskin, G. Watt. 2004-11-09. Simultaneous QCD analysis of diffractive and inclusive DIS data. https://doi.org/10.1103/physrevd.70.091502

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