QCD, the Parton Model, and the Nucleon Polarised Structure Functions
Paolo M. Gensini
Abstract
The present talk summarises the 1993 situation in understanding the spin structure of the nucleon via electron and muon polarised deep--inelastic scattering (PDIS). The central question I shall address here is if the data can be interpreted as evidence for polarisation in the ``strange'' nucleon ``sea'', and I conclude that they can not: incidentally, I also find that they can not be constructed as evidence for violation of perturbative QCD (PQCD), either. Talk presented at ``Quinto Convegno su Problemi di Fisica Nucleare Teorica'', Cortona (Arezzo, Italy), October 1993. To be published in the proceedings: ``Perspectives on Theoretical Nuclear Physics (V)'', L. Bracci, et al., eds. (ETS Ed., Pisa 1994)
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