HADRON PRODUCTION AND LAMBDA POLARIZATION IN DIS

摘要

The role of hadronization mechanism in polarization phenomena in DIS and a purity method for extraction of polarized distribution functions are discussed. A model for the longitudinal polarization of A~0 baryons produced in deep-inelastic lepton scattering is proposed. Within the context of our model, the NOMAD data imply that the intrinsic strangeness associated with a valence quark has anticorre-lated polarization. We also compare our model predictions with the data from the HERMES experiment. Predictions of our model for the COMPASS experiment are also given.