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arXiv · hep-ph/9812385

Probing the Structure of the Pomeron

J. Ellis·G. G. Ross·J. Williams
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Abstract

We suggest that the pseudo-rapidity cut dependence of diffractive deep-inelastic scattering events at HERA may provide a sensitive test of models of diffraction. A comparison with the experimental cross section shows that the Donnachie-Landshoff model and a simple two-gluon exchange model of the pomeron model are disfavoured. However a model with a direct coupling of the pomeron to quarks is viable for a harder quark--pomeron form factor, as is a model based on the leading-twist operator contribution. We also consider a direct-coupling scalar pomeron model. We comment on the implications of these results for the determination of the partonic structure of the pomeron.

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J. Ellis, G. G. Ross, J. Williams. 1998-12-16. Probing the Structure of the Pomeron. https://doi.org/10.1007/s100520050767

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