Structure Functions of the Nucleon and their Interpretation

Details Structure Functions of the Nucleon and their Interpretation Structure Functions of the Nucleon and their Interpretation

1997-12-08

arxiv.org/abs/hep-ph/9712301v1

Int.J.Mod.Phys.A13:3385-3586,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

196 pages, 79 figures, uses ijmpa.sty and psfig.tex (included)

Scientific paper

10.1142/S0217751X98001670

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 H1 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 alpha_s measurements from deep inelastic data is reviewed. Models and non-perturbative 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 summarised. Some brief comments are made on the recent HERA measurements of the ep NC and CC cross-sections at very high Q2.

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