Flavor and Spin Contents of the Nucleon in the Quark Model with Chiral Symmetry

Details Flavor and Spin Contents of the Nucleon in the Quark Model with Chiral Symmetry Flavor and Spin Contents of the Nucleon in the Quark Model with Chiral Symmetry

1994-10-21

arxiv.org/abs/hep-ph/9410345v2

Phys.Rev.Lett.74:2872-2875,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

figure has been separated from tex file. No other changes. Preprint CMU-HEP94-30

Scientific paper

10.1103/PhysRevLett.74.2872

A simple calculation in the framework of the chiral quark theory of Manohar and Georgi yields results that can account for many of the ''failures'' of the naive quark model: significant strange quark content in the nucleon as indicated by the value of $\sigma _{\pi N},$ the $\overline{u}$-$\overline{d} $ asymmetry in the nucleon as measured by the deviation from Gottfried sum rule and by the Drell-Yan process, as well as the various quark contributions to the nucleon spin as measured by the deep inelastic polarized lepton-nucleon scatterings.

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