Structure functions of the nucleon and their interpretation

被引:134
作者
Cooper-Sarkar, AM
Devenish, RCE
De Roeck, A
机构
[1] Univ Oxford, Dept Phys, Nucl & Astrophys Lab, Oxford OX1 3RH, England
[2] DESY, D-22607 Hamburg, Germany
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 1998年 / 13卷 / 20期
关键词
D O I
10.1142/S0217751X98001670
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The current status of measurements of the nucleon structure functions and their understanding is reviewed. The fixed target experiments E665, CCFR and NMC and the HERA experiments HI and ZEUS are discussed in some detail. The extraction of parton momentum distribution functions from global fits is described, with particular attention paid to much improved information on the gluon momentum distribution. The status of a, measurements from deep inelastic data is reviewed. Models and nonperturbative approaches for the parton input distributions are outlined. The impact on the phenomenology of QCD of the data at very low values of the Bjorken x variable is discussed in detail. Recent advances in the understanding of the transition from deep inelastic scattering to photoproduction are summarized. Some brief comments are made on the recent HERA measurements of the ep NC and CC cross-sections at very high Q(2).
引用
收藏
页码:3385 / 3586
页数:202
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