Probing the structure of the pomeron

被引：0

作者：

Ellis, J ^{[1
]}

Ross, GG

Williams, J

机构：

[1] CERN, Div Theoret Phys, CH-1211 Geneva 23, Switzerland

[2] Dept Phys, Oxford OX1 3NP, England

来源：

EUROPEAN PHYSICAL JOURNAL C | 1999年 / 10卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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.

引用

页码：443 / 460

页数：18

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