Pion Content of the Nucleon in Polarized Semi-Inclusive D.I.s
W. Melnitchouk, A. W. Thomas
Abstract
An explicit pionic component of the nucleon may be identified by measuring polarized Δ++ fragments produced in deep-inelastic scattering off polarized protons. The pion-exchange model predicts highly correlated polarizations of the Δ++ and target proton, in marked contrast with the competing diquark fragmentation process.
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