Pion Content of the Nucleon in Polarized Semi-Inclusive D.I.s

Abstract

An explicit pionic component of the nucleon may be identified by measuring polarized ${\Delta }^{++}$ fragments produced in deep-inelastic scattering off polarized protons. The pion-exchange model predicts highly correlated polarizations of the ${\Delta }^{++}$ and target proton, in marked contrast with the competing diquark fragmentation process.

Comments: to appear in Proceedings of the Workshop on CEBAF at Higher Energies (April 1994); 9 pages, 3 uuencoded figures, ADP-94-6/T148