Flavor Asymmetry of the Nucleon Sea and the Five-Quark Components of the Nucleons

摘要

We extend a light cone five-quark model, originally proposed by Brodsky et al. for the intrinsic charm in the nucleon, to the light-quark sector. We show that the existing data of d-bar-u-bar,s+s-bar and u-bar+d-bar-s-s-bar are reasonably well described by the model, allowing the extraction of the probabilities for various five-quark configurations of the nucleons.