Sea quark contents of octet baryons

Abstract

The flavor asymmetry of the nucleon sea, i.e., the excess of $d\bar{d}$ quark-antiquark pairs over $u\bar{u}$ ones in the proton can be explained by several different models; therefore, it is a challenge to discriminate these models from each other. We examine in this Letter three models: the balance model, the meson cloud model, and the chiral quark model, and we show that these models give quite different predictions on the sea quark contents of other octet baryons. New experiments aimed at measuring the flavor contents of other octet baryons are needed for a more profound understanding of the non-perturbative properties of quantum chromodynamics (QCD).

15 pages, 2 figures, version in final publication

References in corpus (5)

• Statistical effect in the parton distribution functions of the nucleon
• Exploring the Partonic Structure of Hadrons through the Drell-Yan Process
• Generalized parton distributions in a meson cloud model
• Flavor Asymmetry of the Nucleon Sea and W Boson Production
• Effect due to charge symmetry violation on the Paschos-Wolfenstein relation

Cited by in corpus (5)

• Sea Quark Flavor Asymmetry of Hadrons in Statistical Balance Model
• Quark flavor distribution functions for the octet baryons in the chiral quark constituent model
• Electromagnetic and Axial-Vector Form Factors of the Quarks and Nucleon
• Octet Quark Contents from SU(3) Flavor Symmetry
• The quark orbital angular momentum of ground state octet baryons