Quark-Hadron Duality in Neutron (3He) Spin Structure

Abstract

We present experimental results of the first high-precision test of quark-hadron duality in the spin-structure function g_1 of the neutron and ${}^3$He using a polarized 3He target in the four-momentum-transfer-squared range from 0.7 to 4.0 (GeV/c)^2. Global duality is observed for the spin-structure function g_1 down to at least Q^2 = 1.8 (GeV/c)^2 in both targets. We have also formed the photon-nucleon asymmetry A_1 in the resonance region for 3He and found no strong Q^2-dependence above 2.2 (GeV/c)^2.

13 pages, 3 figures

References in corpus (26)

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• Precision Determination of the Neutron Spin Structure Function g1n
• QCD Constrains on the Shape of Polarized Quark and Gluon Distributions
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• Measurement of the $x$- and $Q^2$-Dependence of the Asymmetry $A_1$ on the Nucleon
• Precision Measurement of the Neutron Spin Asymmetry $A_1^n$ and Spin-Flavor Decomposition in the Valence Quark Region
• Valence Quark Spin Distribution Functions
• The Q^2 evolution of the generalized Gerasimov-Drell-Hearn integral for the neutron using a He-3 target
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• Complete analysis of spin structure function g1 of He-3
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• Measurement of the Generalized Forward Spin Polarizabilities of the Neutron
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• Parton-Hadron Duality in Unpolarised and Polarised Structure Functions
• 3He Spin-Dependent Cross Sections and Sum Rules
• Target Mass Effects in Polarized Deep Inelastic Scattering
• Role of Positivity Constraints in Determining Polarized Parton Densities

Cited by in corpus (22)

• Optically Polarized ${}^3$He
• The Spin Structure of the Nucleon
• Parton momentum and helicity distributions in the nucleon
• Impact of hadronic and nuclear corrections on global analysis of spin-dependent parton distributions
• Determination of the Proton Spin Structure Functions for 0.05 < Q^2 < 5 GeV^2 using CLAS
• Precise Determination of the Deuteron Spin Structure at Low to Moderate $Q^2$ with CLAS and Extraction of the Neutron Contribution
• Measurements of $d_2^n$ and $A_1^n$: Probing the neutron spin structure
• New method for extracting neutron structure functions from nuclear data
• Measurement of Parity-Violating Asymmetry in Electron-Deuteron Inelastic Scattering
• Probing Quark-Gluon Interactions with Transverse Polarized Scattering
• Semi-Inclusive Charged-Pion Electroproduction off Protons and Deuterons: Cross Sections, Ratios and Access to the Quark-Parton Model at Low Energies
• Measurement of the Parity-Violating Asymmetry in Electron-Deuteron Scattering in the Nucleon Resonance Region
• Moments of Spin Structure Functions: Sum Rules and Polarizabilities
• Spin structure functions of 3He at finite Q^2
• Confirmation of quark-hadron duality in the neutron F_2 structure function
• What does kinematical target mass sensitivity in DIS reveal about hadron structure?
• Direct observation of quark-hadron duality in the free neutron F_2 structure function
• Moments of the neutron $g_2$ structure function at intermediate $Q^2$
• Highlights and Perspectives of the JLab Spin Physics Program
• Observation of quark-hadron duality in gamma*-p helicity cross sections
• Detailed Study of Quark-Hadron Duality in Spin Structure Functions of the Proton and Neutron
• Measurement of the nucleon spin structure functions for 0.01<$Q^2$<1 GeV${}^2$ using CLAS