Valence Quark Spin Distribution Functions

Abstract

The hyperfine interactions of the constituent quark model provide a natural explanation for many nucleon properties, including the Delta-N splitting, the charge radius of the neutron, and the observation that the proton's quark distribution function ratio d(x)/u(x)->0 as x->1. The hyperfine-perturbed quark model also makes predictions for the nucleon spin-dependent distribution functions. Precision measurements of the resulting asymmetries A_1^p(x) and A_1^n(x) in the valence region can test this model and thereby the hypothesis that the valence quark spin distributions are "normal".

16 pages, 2 Postscript figures

References in corpus (1)

• Precision Determination of the Neutron Spin Structure Function g1n

Cited by in corpus (64)

• Extraction of Spin-Dependent Parton Densities and Their Uncertainties
• Explanation and Prediction of Observables using Continuum Strong QCD
• Distribution Functions of the Nucleon and Pion in the Valence Region
• Precision Measurement of the Neutron Spin Asymmetries and Spin-dependent Structure Functions in the Valence Quark Region
• The Spin Structure of the Proton
• Spin Structure of the Nucleon - Status and Recent Results
• Quark-Hadron Duality in Electron Scattering
• Quark-hadron duality in electron scattering
• Measurement of the $x$- and $Q^2$-Dependence of the Asymmetry $A_1$ on the Nucleon
• Nucleon and $\Delta$ elastic and transition form factors
• Precision Measurement of the Neutron Spin Asymmetry $A_1^n$ and Spin-Flavor Decomposition in the Valence Quark Region
• The Spin Structure of the Nucleon
• Uncertainties in determining parton distributions at large x
• SU(6) breaking effects in the nucleon elastic electromagnetic form factors
• New parton distributions from large-x and low-Q^2 data
• The origins of quark-hadron duality: How does the square of the sum become the sum of the squares?
• Nucleon spin structure at very high-x
• Impact of hadronic and nuclear corrections on global analysis of spin-dependent parton distributions
• Helicity-dependent generalized parton distributions in constituent quark models
• Deep inelastic scattering from A=3 nuclei and the neutron structure function
• Neutron Structure Function and A=3 Mirror Nuclei
• Evidence for Quark-Hadron Duality in the Proton Spin Asymmetry $A_1$
• Determination of the Proton Spin Structure Functions for 0.05 < Q^2 < 5 GeV^2 using CLAS
• Symmetry breaking and quark-hadron duality in structure functions
• The Flavor and Spin Structure of Hyperons from Quark Fragmentation
• Azimuthal Spin Asymmetries of Pion Electroproduction
• Understanding the proton's spin structure
• Contact-interaction Faddeev equation and, inter alia, proton tensor charges
• Nucleon Transversity Distribution from Azimuthal Spin Asymmetry in Pion Electroproduction
• Precise Determination of the Deuteron Spin Structure at Low to Moderate $Q^2$ with CLAS and Extraction of the Neutron Contribution
• Constraints on spin-dependent parton distributions at large x from global QCD analysis
• Measurements of $d_2^n$ and $A_1^n$: Probing the neutron spin structure
• Neutron structure function and inclusive DIS from H-3 and He-3 at large Bjorken-x
• Precision Measurements of $A_1^n$ in the Deep Inelastic Regime
• Small- and large-x nucleon spin structure from a global QCD analysis of polarized Parton Distribution Functions
• Axial form factors of the octet baryons in a covariant quark model
• Helicity and Transversity Distribution of Nucleon and $\Lambda$-Hyperon from $\Lambda$ Fragmentation
• Quark Distributions of Octet Baryons from SU(3) Symmetry
• Quark-Hadron Duality in Neutron (3He) Spin Structure
• Spin and angular momentum in the nucleon
• Comparative study of nuclear effects in polarized electron scattering from 3He
• Soft gluon effects in the extraction of higher twists at large Bjorken x
• Transversity from two pion interference fragmentation
• Realizing vector meson dominance with transverse charge densities
• Quark sea asymmetries of the octet baryons
• $x-$dependence of the quark distribution functions in the $\chi$CQM${}_{\mathrm{config}}$
• Modeling quark-hadron duality for relativistic, confined fermions
• Nucleon structure functions and longitudinal spin asymmetries in the chiral quark constituent model
• Single Target-Spin Asymmetry in Semi-Inclusive Deep Inelastic Scattering on Transversely Polarized Nucleon Target
• Transverse Momentum and Transverse Momentum Distributions in the MIT Bag Model
• Spin force dependence of the parton distributions: the ratio $F_2^n(x,Q^2)/F_2^p(x,Q^2)$
• Parity-violating asymmetry of $W$ bosons produced in $p$-$p$ collisions
• Extraction of the neutron F2 structure function from inclusive proton and deuteron deep-inelastic scattering data
• Systematic uncertainties from higher-twist corrections in DIS at large x
• Quark flavor distribution functions for the octet baryons in the chiral quark constituent model
• Highlights and Perspectives of the JLab Spin Physics Program
• Ratio of $\bar{\Lambda }/\Lambda$ in Semi-inclusive Electroproduction
• Modeling quark-hadron duality in polarization observables
• Re-examining valence quark spin distributions
• Physical Implications of the Extrapolation and Statistical Bootstrap of the Nucleon Structure Function Ratio $\frac{F_2^n}{F_2^p}$ for Mirror Nuclei ${}^3$He and ${}^3$H
• Particle-Antiparticle Asymmetries of $\Lambda$ Production in Hadron-Nucleon Collisions
• Quark Spin Properties at High x
• Polarized Parton Distributions and the Polarized Gluon Asymmetry
• Neutron structure function via a maximum entropy analysis