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The quark flavor and spin distributions in octet baryons are calculated both in the SU(6) quark spectator diquark model and in a perturbative QCD (pQCD) based model. It is shown that the Λ has the most significant difference in flavor structure at large x between the two models, though the flavor and spin structure of other baryons can also provide tests of different models. The Drell-Yan process...
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