Diffractive parton distributions from the saturation model

被引：75

作者：

Golec-Biernat, K

Wüsthoff, M

机构：

[1] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany

[2] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[3] Univ Durham, Dept Phys, Durham DH1 3LE, England

来源：

EUROPEAN PHYSICAL JOURNAL C | 2001年 / 20卷 / 02期

关键词：

D O I：

10.1007/s100520100661

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 review diffractive deep inelastic scattering (DIS) in the light of the collinear factorization theorem, This theorem allows one to define diffractive parton distributions in the leading twist approach. Due to its selective final states, diffractive DIS offers interesting: insight into the form of the diffractive parton distributions which we explore with the help of the saturation model. We find Regge-like factorization with the correct energy dependence measured at HERA. A remarkable feature of diffractive DIS is the dominance of the twist-4 contribution for small diffractive masses. We quantify this effect and make a comparison with the data.

引用

页码：313 / 321

页数：9

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