The Polarized Nucleon in Quark Models

Abstract

A brief overview of various problems related to the description of a polarized proton in quark models is presented. Structure functions are discussed both for longitudinal and transverse polarization. A recently introduced quantity, relevant in the study of single-spin asymmetries, is shown to be in principle non-vanishing when computed in chiral models.

6 pages, 2 figures, Talk given at Fourth Workshop on Quantum Chromodynamics, American University of Paris, Paris, France, 1-6 June 1998