Omega Meson Cloud and the Proton's Light Anti-Quark Distribution

Abstract

We use the meson cloud model of the nucleon to calculate distribution functions for $(\bar{d}-\bar{u})$ and $\bar{d}/\bar{u}$ in the proton. Including the effect of the omega meson cloud, with a coupling constant $g_{\omega }^2/4\pi \approx 8$, allows a reasonably good description of the data.

6 pages, 2 figures, LaTex

References in corpus (6)

• Measurement of the Light Antiquark Flavor Asymmetry in the Nucleon Sea
• The Flavor Asymmetry of the Light Quark Sea from Semi-inclusive Deep-inelastic Scattering
• Dynamics of Light Antiquarks in the Proton
• Do the E866 Drell Yan data change our picture of the chiral structure of the nucleon ?
• Light Front Treatment of Nuclei: Formalism and Simple Applications
• The Quark Distributions in the Σ^+ Hyperon

Cited by in corpus (19)

• Improved Measurement of the $\bar{d}/\bar{u}$ Asymmetry in the Nucleon Sea
• Dynamical Symmetry Breaking in the Sea of the Nucleon
• Electroweak structure of the nucleon, meson cloud and light-cone wavefunctions
• The quark - antiquark asymmetry of the strange sea of the nucleon
• Nucleon sea in the effective chiral quark model
• Chiral Light Front Perturbation Theory and the Flavor Dependence of the Light-Quark Nucleon Sea
• Parton Distribution of Proton in a Simple Statistical Model
• Sea quark contents of octet baryons
• Quark sea asymmetries of the octet baryons
• Collinear parton distributions and the structure of the nucleon sea in a light-front meson-cloud model
• Parton distributions in the proton and pion
• Sigma Meson Cloud and Proton's Light Flavor Sea Quarks
• Nucleon structure functions and longitudinal spin asymmetries in the chiral quark constituent model
• Sea Quark Flavor Asymmetry of Hadrons in Statistical Balance Model
• Quark flavor distribution functions for the octet baryons in the chiral quark constituent model
• Pion-Exchange and Fermi-Motion Effects on the Proton-Deuteron Drell-Yan Process
• Electromagnetic and Axial-Vector Form Factors of the Quarks and Nucleon
• Multi-quark components in baryons
• Coordinate Space Distributions of Antiquark Flavor Asymmetries in the Proton