A PARTON MODEL FOR DIFFRACTIVE PROCESSES IN DEEP-INELASTIC SCATTERING

被引：90

作者：

BUCHMULLER, W

HEBECKER, A

机构：

[1] Deutsches Elektronen-Synchrotron DESY

来源：

PHYSICS LETTERS B | 1995年 / 355卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(95)00721-V

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We demonstrate that the global properties of the ''rapidity gap'' events, observed at HERA, can be understood based on electron-gluon scattering as the underlying partonic process. Using the measured inclusive structure function F-2 to determine the parameters of the parton model, the diffractive structure function F-2(D) is predicted. The ratio of diffractive and inclusive cross sections, R(D) = sigma(D)/sigma(incl)similar or equal to 1/9, is determined by the probability of the produced quark-antiquark pair to evolve into a colour singlet state. This colour singlet cluster may fragment into hadrons independently of the proton remnant, yielding the observed gap in rapidity.

引用

页码：573 / 578

页数：6

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