%0 Journal Article
%T Meson Cloud of the Nucleon in Polarized Semi-Inclusive Deep-Inelastic Scattering
%A W. Melnitchouk
%A A. W. Thomas
%J Physics
%D 1995
%I arXiv
%R 10.1007/BF01292337
%X We investigate the possibility of identifying an explicit pionic component of the nucleon through measurements of polarized $\Delta^{++}$ baryon fragments produced in deep-inelastic leptoproduction off polarized protons, which may help to identify the physical mechanism responsible for the breaking of the Gottfried sum rule. The pion-exchange model predicts highly correlated polarizations of the $\Delta^{++}$ and target proton, in marked contrast with the competing diquark fragmentation process. Measurement of asymmetries in polarized $\Lambda$ production may also reveal the presence of a kaon cloud in the nucleon.
%U http://arxiv.org/abs/hep-ph/9508205v1