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).

arXiv comment15 pages, 2 figures, version in final publication

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Cited by in corpus (10)

• Intrinsic charm content of the nucleon and charmness-nucleon sigma term
• Light flavor asymmetry of nucleon sea
• Sea flavor content of octet baryons and intrinsic five-quark Fock states
• Quark sea asymmetries of the octet baryons
• Nucleon structure functions and longitudinal spin asymmetries in the chiral quark constituent model
• Quark flavor distribution functions for the octet baryons in the chiral quark constituent model
• Sea Quark Flavor Asymmetry of Hadrons in Statistical Balance 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