PARTON DISTRIBUTIONS AT SMALL X

被引：199

作者：

KWIECINSKI, J ^{[1
]}

MARTIN, AD ^{[1
]}

STIRLING, WJ ^{[1
]}

ROBERTS, RG ^{[1
]}

机构：

[1] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

来源：

PHYSICAL REVIEW D | 1990年 / 42卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.42.3645

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform a next-to-leading-order QCD analysis of the recent data for deep-inelastic lepton-nucleon scattering and related processes, in which we pay particular attention to the forms of the parton distributions at very small x. We discuss in detail, and we incorporate in the analysis, the theoretical QCD results leading to the singular x-12-type behavior of the gluon and sea-quark distributions, as well as the modifications due to shadowing effects. We find the QCD shadowing corrections are significant for x 10-3 even though the parton distributions are below their saturation limit. We give predictions for the structure functions F2 and FL accessible at the DESY ep collider HERA, and for W and Z production up to the energies of the CERN Large Hadron Collider and the Superconducting Super Collider. We discuss the possibility of experiments at these colliders probing the parton distributions in the very-small-x region. © 1990 The American Physical Society.

引用

页码：3645 / 3659

页数：15

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