Flavor and Spin Structure of Octet Baryons at Large x

Abstract

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 $\Lambda$ 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 for ${\Sigma }^{\pm }$ beams on isoscalar targets can be used to test different predictions concerning the valence quark flavor structure of the ${\Sigma }^{\pm }$.

24 pages, 11 figures, version published in Nucl.Phys.B 574 (2000) 331

References in corpus (3)

• Flavor Decomposition of the Polarized Quark Distributions in the Nucleon from Inclusive and Semi-inclusive Deep-inelastic Scattering
• Melosh rotation: source of the proton's missing spin
• Quark Structure of $\Lambda$ from $\Lambda$-Polarization in Z Decays

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