Spin and Flavor Strange Quark Content of the Nucleon

Abstract

Several spin and flavor dependent parameters characterizing the strangeness content of the nucleon have been calculated in the chiral constituent quark model with configuration mixing (\chiCQM_{config}) which is known to provide a satisfactory explanation of the ``proton spin crisis'' and related issues. In particular, we have calculated the strange spin polarization Δs, the strangeness contribution to the weak axial vector couplings Δ_8 etc., strangeness contribution to the magnetic moments μ(p)^s etc., the strange quark flavor fraction f_s, the strangeness dependent quark flavor ratios \frac{2 \bar s}{u+d} and \frac{2 \bar s}{\bar u+ \bar d} etc.. Our results are consistent with the recent experimental observations.

arXiv comment15 pages, 3 tables, to appear in PRD

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Cited by in corpus (16)

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• Nucleon form factors, generalized parton distributions and quark angular momentum
• Spin 1/2^+, spin 3/2^+ and transition magnetic moments of low lying and charmed baryons
• Masses and Magnetic moments of Triply Heavy Flavour Baryons in Hypercentral Model
• Magnetic moments of the low-lying {1/2}^- octet baryon resonances
• Magnetic moments of $J^P={\frac{3}{2}}^{+}$ decuplet baryons using effective quark masses in chiral constituent quark model
• Axial-vector form factors for the low lying octet baryons in the chiral quark constituent model
• Magnetic moments of the low-lying $J^P=1/2^{-}$, $3/2^{-}$ $\Lambda$ resonances within the framework of the chiral quark model
• Quark sea asymmetries of the octet baryons
• Transition magnetic moments of $J^P={\frac{3}{2}}^{+}$ decuplet to $J^P={\frac{1}{2}}^{+}$ octet baryons in the chiral constituent quark model
• 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
• Strangeness and Chiral Symmetry Breaking
• Electromagnetic and Axial-Vector Form Factors of the Quarks and Nucleon
• Axial-vector charges of the spin ${\frac{1}{2}}^{+}$ and spin ${\frac{3}{2}}^{+}$ light and charmed baryons in the SU(4) chiral quark constituent model
• Mechanism of single-spin asymmetries generation in the inclusive hadron processes