Simultaneous QCD analysis of diffractive and inclusive DIS data

Details Simultaneous QCD analysis of diffractive and inclusive DIS data Simultaneous QCD analysis of diffractive and inclusive DIS data

2004-12-15

arxiv.org/abs/hep-ph/0412212v1

Nucl.Phys.Proc.Suppl. 146 (2005) 192-196

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 6 figures. To appear in the proceedings of the Diffraction 2004 Workshop, Cala Gonone, Sardinia, Italy, 18-23 Septemb

Scientific paper

10.1016/j.nuclphysbps.2005.02.09

We present a novel analysis of diffractive DIS data, in which the input parton distributions of the Pomeron are parameterised using perturbative QCD expressions. In addition to the usual two-gluon model for the perturbative Pomeron, we allow for the possibility that it may be made from two sea quarks. In particular, we treat individually the components of the Pomeron of different size. This property allows the absorptive corrections to the inclusive DIS structure function F_2 to be calculated using the AGK cutting rules. The absorptive effects are found to enhance the size of the gluon distribution of the proton at small x.

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