%0 Journal Article
%T Flavor and Spin Contents of the Nucleon in the Quark Model with Chiral Symmetry
%A T. P. Cheng
%A Ling-Fong Li
%J Physics
%D 1994
%I arXiv
%R 10.1103/PhysRevLett.74.2872
%X 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.
%U http://arxiv.org/abs/hep-ph/9410345v2