Quark flavor distribution functions for the octet baryons in the chiral quark constituent model

Abstract

The quark flavor distribution functions of the octet baryons ($N$, $\Sigma$, $\Xi$ and $\Lambda$) have been calculated in the chiral constituent quark model ($\chi$CQM). In particular, the valence and sea quark flavor distribution functions of the scalar density matrix elements of octet baryons have been computed explicitly. The implications of chiral symmetry breaking and SU(3) symmetry breaking have been discussed in detail for the sea quark asymmetries, fraction of a particular quark (antiquark) present in a baryon, flavor structure functions and the Gottfried integral. The meson-baryon sigma terms ${\sigma }_{\pi B}$, ${\sigma }_{KB}$, and ${\sigma }_{\eta B}$ for the case of $N$, $\Sigma$ and $\Xi$ baryons have also been calculated. The results have been compared with the recent available experimental observations for the case of $N$ and how the future experiments for $\Sigma$, $\Xi$ and $\Lambda$ can provide important constraints to describe the role of non-valence (sea) degrees of freedom has been discussed.

References in corpus (78)

• A Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering
• Improved Measurement of the $\bar{d}/\bar{u}$ Asymmetry in the Nucleon Sea
• Precision Determination of the Neutron Spin Structure Function g1n
• Baryons as non-topological chiral solitons
• Measurement of the Light Antiquark Flavor Asymmetry in the Nucleon Sea
• Next-to-Leading Order Radiative Parton Model Analysis of Polarized Deep Inelastic Scattering
• Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment
• Spin Structure of the Proton from Polarized Inclusive Deep-Inelastic Muon-Proton Scattering
• Quark helicity distributions in the nucleon for up, down, and strange quarks from semi--inclusive deep--inelastic scattering
• Precise Measurement of Dimuon Production Cross-Sections in muon neutrino Fe and muon antineutrino Fe Deep Inelastic Scattering at the Tevatron
• Determination of the Strange Quark Content of the Nucleon from a Next-to-Leading-Order QCD Analysis of Neutrino Charm Production
• Measurement of Strange Quark Contributions to the Nucleon's Form Factors at Q^2=0.230 (GeV/c)^2
• Baryons as Chiral Solitons in the Nambu--Jona-Lasinio Model
• The Strange Quark Contribution to the Proton's Magnetic Moment
• Precision Measurements of the Nucleon Strange Form Factors at Q^2 ~0.1 GeV^2
• The Flavor Asymmetry of the Light Quark Sea from Semi-inclusive Deep-inelastic Scattering
• Parity-violating electroweak asymmetry in $\vec{e}p$ scattering
• Evidence for Strange Quark Contributions to the Nucleon's Form Factors at $Q^2$ = 0.108 (GeV/c)${}^2$
• Unpolarized and polarized quark distributions in the large-Nc limit
• Measurements of the Proton and Deuteron Spin Structure Function g2 and Asymmetry A2
• Strange Quark Contributions to Parity-Violating Asymmetries in the Backward Angle G0 Electron Scattering Experiment
• dbar/ubar Asymmetry and the Origin of the Nucleon Sea
• Strange Hadronic Loops of the Proton: A Quark Model Calculation
• Flavor and Spin Contents of the Nucleon in the Quark Model with Chiral Symmetry
• On the Effect of Asymmetric Strange Seas and Isospin-Violating Parton Distribution Functions on sin2thetaW Measured at NuTeV
• Strangeness in the nucleon: neutrino-nucleon and polarized electron-nucleon scattering
• New Precision Limit on the Strange Vector Form Factors of the Proton
• $\pi N\sigma$ Term , $\bar{s}s$ in Nucleon, and Scalar Form Factor --- a Lattice Study
• Valence Quark Spin Distribution Functions
• Spin 1/2^+, spin 3/2^+ and transition magnetic moments of low lying and charmed baryons
• Sigma-term physics in the perturbative chiral quark model
• Pion-Nucleon Sigma Term in Lattice QCD
• Measurement of charm production in neutrino charged-current interactions
• Flavor Structure of the Nucleon Sea
• Chiral Quark Model of Nucleon Spin-Flavor Structure with SU(3) and Axial-U(1) Breakings
• Why Naive Quark Model Can Yield a Good Account of the Baryon Magnetic Moments
• Octet Baryon Magnetic Moments in the Chiral Quark Model with Configuration Mixing
• Polarized Nucleon Structure Functions within a Chiral Soliton Model
• Light-flavor sea-quark distributions in the nucleon in the SU(3) chiral quark soliton model (I) -- phenomenological predictions --
• Chiral Symmetry and the Nucleon Structure Functions
• Decuplet Baryon Magnetic Moments in the Chiral Quark Model
• Octet and Decuplet Baryon Magnetic Moments in the Chiral Quark Model
• Nucleon spin-flavor structure in SU(3) breaking chiral quark model
• Factorization in Semi-Inclusive Polarized Deep Inelastic Scattering
• Gluons and the eta' nucleon coupling constant
• Statistical effect in the parton distribution functions of the nucleon
• Octet magnetic moments and the Coleman-Glashow sum rule violation in the chiral quark model
• Chiral Quark Model with Configuration Mixing
• Nucleon sea in the effective chiral quark model
• New Relations and Constraints on Quark Spin-flavor Contents in Symmetry-breaking Chiral Quark Model
• Magnetic moments of the low-lying {1/2}^- octet baryon resonances
• Leading order analysis of neutrino induced dimuon events in the CHORUS experiment
• Polarized light-antiquark distributions in a meson-cloud model
• Weak vector and axial-vector form factors in the chiral constituent quark model with configuration mixing
• Omega Meson Cloud and the Proton's Light Anti-Quark Distribution
• Non-perturbative structure of the polarized nucleon sea
• Quark asymmetries in the proton from a model for parton densities
• Spin and Flavor Strange Quark Content of the Nucleon
• SU(4) Chiral Quark Model with Configuration Mixing
• The sigma-term form factor of the nucleon in the large-Nc limit
• Generalized parton distributions in a meson cloud model
• Chiral constituent quark model and the coupling strength of eta'
• Nuclear EMC Effect in a Statistical Model
• Chiral quark model and the nucleon spin
• Axial-vector form factors for the low lying octet baryons in the chiral quark constituent model
• Quadrupole moments of low lying baryons with spin 1/2^+, spin 3/2^+, and spin 3/2^+ \to 1/2^+ transitions
• Magnetic moments of the low-lying $J^P=1/2^{-}$, $3/2^{-}$ $\Lambda$ resonances within the framework of the chiral quark model
• Baryon masses in a chiral expansion with meson-baryon form factors
• Sea quark contents of octet baryons
• On the Momentum Dependence of the Flavor Structure of the Nucleon Sea
• Strangeness in the Scalar Form Factor of the Nucleon
• $\pi N\sigma$ Term and Quark Spin Content of the Nucleon
• Sigma Meson Cloud and Proton's Light Flavor Sea Quarks
• Today's View on Strangeness
• Physics with charm particles produced in neutrino interactions. A historical recollection
• The baryon octet magnetic moments to all orders in flavor breaking; an application to the problem of the strangeness in the nucleon
• Proton spin structure and the axial U(1) problem
• QCD Sum Rules study of meson-baryon sigma terms

Cited by in corpus (4)

• Nucleon structure functions and longitudinal spin asymmetries in the chiral quark constituent model
• Properties of JP = 1/2+ baryon octets at low energy
• Electromagnetic and Axial-Vector Form Factors of the Quarks and Nucleon
• Generalized parton distributions for the lowest-lying octet baryons