Strangeness spin, magnetic moment and strangeness configurations of the proton

Abstract

The implications of the empirical signatures for the positivity of the strangeness magnetic moment ${\mu }_s$, and the negativity of the strangeness contribution to the proton spin ${\Delta }_s$, on the possible $uuds\bar{s}$ configurations of five quarks in the proton are analyzed. The empirical signs for the values of these two observables can only be obtained in configurations where the $uuds$ system is orbitally excited and the $\bar{s}$ quark is in the ground state. The configurations, in which the $\bar{s}$ is orbitally excited, which include the conventional $K^{+}{\Lambda }^0$ congfiguration, with the exception of that, in which the $uuds$ component has spin 2, yield negative values for ${\mu }_s$. Here the strangeness spin ${\Delta }_s$, the strangeness magnetic moment ${\mu }_s$ and the axial coupling constant $G_A^s$ are calculated for all possible configurations of the $uuds\bar{s}$ component of the proton. In the configuration with $[4{]}_{FS}[22{]}_F[22{]}_S$ flavor-spin symmetry, which is likely to have the lowest energy, ${\mu }_s$ is positive and ${\Delta }_s\simeq G_A^s\simeq -1/3{\mu }_s$.

arXiv comment17 pages

References in corpus (31)

• Diquarks and Exotic Spectroscopy
• The Spectrum of the Nucleons and the Strange Hyperons and Chiral Dynamics
• Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment
• The light baryon spectrum in a relativistic quark model with instanton-induced quark forces I. The non-strange baryon spectrum and ground-states
• Quark helicity distributions in the nucleon for up, down, and strange quarks from semi--inclusive deep--inelastic scattering
• The Strange Quark Contribution to the Proton's Magnetic Moment
• 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)${}^2$
• The Spin Structure of the Nucleon
• The light baryon spectrum in a relativistic quark model with instanton-induced quark forces II. The strange baryon spectrum
• Precise determination of the strangeness magnetic moment of the nucleon
• Flavor Asymmetry of Light Quarks in the Nucleon Sea
• Strange Hadronic Loops of the Proton: A Quark Model Calculation
• Comment on "Mass and K Lambda coupling of N*(1535)"
• Mass and $K\Lambda$ coupling of $N^{\ast }(1535)$
• Sea quark and gluon polarization in the nucleon at NLO accuracy
• Low lying $qqqq\bar{q}$ states in the baryon spectrum
• Parity-Violating Electron Scattering and Neucleon Structure
• A schematic model for pentaquarks based on diquarks
• The $s\bar{s}$ component of the proton and the strangeness magnetic moment
• The nucleon's strange electromagnetic and scalar matrix elements
• Strange nucleon form factors in the perturbative chiral quark model
• Stranger Still: Kaon Loops and Strange Quark Matrix Elements of the Nucleon
• The Charm and Bottom Hyperons in a Chiral Quark Model
• On the strange vector form factors of the nucleon in the NJL soliton model
• Determination of the strange form factors of the nucleon from $\nu p$, $\bar{\nu }p$, and parity-violating $\vec{e}p$ elastic scattering
• Two-Pion Exchange Interaction Between Constituent Quarks
• Strange and singlet form factors of the nucleon: Predictions for G0, A4, and HAPPEX-II experiments
• Strangeness Form Factors of the Proton in the Chiral Quark Model
• Strange Form Factors of Baryons
• K* nucleon hyperon form factors and nucleon strangeness

Cited by in corpus (33)

• Study of $qqqc\bar{c}$ five quark system with three kinds of quark-quark hyperfine interaction
• The Spin Structure of the Nucleon
• Unquenched quark model for baryons: magnetic moments, spins and orbital angular momenta
• Isospin violation in the vector form factors of the nucleon
• Flavor Structure of the Nucleon Sea
• The role of the $qqqq\bar{q}$ components in the electromagnetic transition ${\gamma }^{\ast }N\to N^{\ast }(1535)$
• Five-quark components in baryons
• Strange Quark Contribution to the Vector and Axial Form Factors of the Nucleon: Combined Analysis of G0, HAPPEx, and Brookhaven E734 Data
• The $qqqq\bar{q}$ components and hidden flavor contributions to the baryon magnetic moments
• The strangeness form factors of the proton
• Strong decay of low-lying $S_{11}$ and $D_{13}$ nucleon resonances to pseudoscalar mesons and octet baryons
• Spectrum of low-lying $s^{3}Q\bar{Q}$ configurations with negative parity
• Strangeness in the proton and N*(1535)
• Pentaquark components in low-lying baryon resonances
• Sea flavor content of octet baryons and intrinsic five-quark Fock states
• Strangeness magnetic form factor of the proton in the extended chiral quark model
• Strong decays of $N^{\ast }(1535)$ in an extended chiral quark model
• The s-s(bar) asymmetry in nucleon and "NuTeV anomaly"
• Decay patterns of low-lying $N_{s\bar{s}}$ states to the strangeness channels
• The strangeness form factors of the proton within nonrelativistic constituent quark model revisited
• The $qqqq\bar{q}$ components and the magnetic moments of the charmed and the bottomed baryons
• The axial charges of proton within an extended chiral constituent quark model
• Orbital angular momentum of the proton and intrinsic five-quark Fock states
• Investigations on the flavor-dependent axial charges of the octet baryons
• The contributions of $qqqq\bar{q}$ components to the axial charges of proton and its resonances
• Proposal and theoretical formalism for studying baryon radiative decays from J/ψ\to B^*\bar B + \bar{B^*}B \to γB\bar B
• Role of pentaquark components in $\varphi$ meson production proton-antiproton annihilation reactions
• phi-meson production in proton-antiproton annihilation
• Estimating proton radius and proportion of other non-perturbative components in the proton by the Maximum Entropy Method
• The quark orbital angular momentum of ground state octet baryons
• Complete basis for the pentaquark wave function in a group theory approach
• Proton strangeness form factors in (4,1) clustering configurations
• Penta-quark States with Strangeness, Hidden Charm and Beauty