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[en] We summarize recent developments in the understanding of nucleon structure. New data on F2, R and Fcantic2, over a wide range of Q2 (from 104GeV2 down to 0.1 GeV2) and x (down to 10-6), are described. Conventional leading twist NLO perturbative QCD gives an excellent description of all the new data with Q2 above a GeV, leaving very little room for either higher twists or higher logarithms. We summarize the current status of NLO fits, and the determination of the gluon distribution and the strong coupling constant from structure function data. Finally we consider some of the theoretical issues raised by the new data. (orig.)
Source
Aug 1996; 26 p; 4. international conference on deep inelastic scattering (DIS); Rome (Italy); 15-20 Apr 1996; HEP-PH--9609309; EDINBURGH--96/24; ISSN 0418-9833; 