Probing Quark-Gluon Interactions with Transverse Polarized Scattering

Abstract

We have extracted QCD matrix elements from our data on double polarized inelastic scattering of electrons on nuclei. We find the higher twist matrix element \tilde{d_2}, which arises strictly from quark- gluon interactions, to be unambiguously non zero. The data also reveal an isospin dependence of higher twist effects if we assume that the Burkhardt-Cottingham Sum rule is valid. The fundamental Bjorken sum rule obtained from the a0 matrix element is satisfied at our low momentum transfer.

formerly "Nachtmann Moments of the Proton and Deuteron Spin Structure Functions"

References in corpus (14)

• Precise determination of the spin structure function ${\mathbf{g}}_1$ of the proton, deuteron and neutron
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• A new parameterization of the nucleon elastic form factors
• Empirical Fit to Precision Inclusive Electron-Proton Cross Sections in the Resonance Region
• Empirical Fit to Inelastic Electron-Deuteron and Electron-Neutron Resonance Region Transverse Cross Sections
• Proton G_E/G_M from beam-target asymmetry
• Moments of the Spin Structure Functions g_1^p and g_1^d for 0.05 < Q^2 < 3.0 GeV^2
• Proton Spin Structure in the Resonance Region
• New method for extracting neutron structure functions from nuclear data
• Quark-Hadron Duality in Neutron (3He) Spin Structure
• Target mass corrections for spin-dependent structure functions in collinear factorization
• 3He Spin-Dependent Cross Sections and Sum Rules
• Target Mass Effects in Polarized Deep Inelastic Scattering
• Deuteron spin structure functions in the resonance and DIS regions

Cited by in corpus (22)

• Iterative Monte Carlo analysis of spin-dependent parton distributions
• The Spin Structure of the Nucleon
• High precision determination of the $Q^2$-evolution of the Bjorken Sum
• Impact of hadronic and nuclear corrections on global analysis of spin-dependent parton distributions
• Nucleon spin structure functions at NNLO in the presence of target mass corrections and higher twist effects
• Measurements of $d_2^n$ and $A_1^n$: Probing the neutron spin structure
• Measurement of the Bjorken Sum at very low $Q^2$
• Revealing Color Forces with Transverse Polarized Electron Scattering
• Accessing the nucleon transverse structure in inclusive deep inelastic scattering
• Measurement of the 3He Spin-Structure Functions and of Neutron (3He) Spin-Dependent Sum Rules at 0.035<Q^2<0.24 GeV^2
• QCD factorization for twist-three axial-vector parton quasidistributions
• A Precision Measurement of the Neutron Twist-3 Matrix Element $d_2^n$: Probing Color Forces
• Moments of the neutron $g_2$ structure function at intermediate $Q^2$
• Evaluation of Bjorken polarised sum rule with a renormalon-motivated approach
• Resonant contributions to polarized proton structure functions
• Recent data analysis to revisit the spin structure function of nucleon in Laplace space
• Probing Proton Spin Structure: A Measurement of g2p at Four-momentum Transfer of 2 to 6 GeV^2
• Measurement of the nucleon spin structure functions for 0.01<$Q^2$<1 GeV${}^2$ using CLAS
• The polarized photon distribution function
• Transverse Spin Structure Function g2(x, Q2 ) in the Valon model
• Polarized proton structure in the resonance region
• Nucleon spin structure functions, considering target mass correction and higher twist effects at the NNLO accuracy and their transverse momentum dependence