On the Q^2 Dependence of Measured Polarized Structure Funtions

Abstract

We analyse the available data on the polarized asymmetries $A_1$ for proton, neutron and deuteron targets. We use a homogeneous and updated set of unpolarized structure functions to derive $g_1$ from $A_1$, and we accurately correct for the scaling violations in order to obtain $g_1(x,Q^2)$ with the same $Q^2$ for all $x$ values. The contribution to the $Q^2$ evolution of a possible large gluon polarized density is also considered. The implications for the Ellis-Jaffe and for the Bjorken sum rules are discussed.

11 pages (LaTex) + 4 figures (topdrawer, included at the end) CERN-TH 7023/93

References in corpus (3)

• Consistent Analysis of the Spin Content of the Nucleon
• ERRATUM TO: Power corrections $1/Q^2$ to parton sum rules for deep inelastic scattering from polarized targets
• Instanton contributions to the $\tau$ decay widths

Cited by in corpus (32)

• The theory and phenomenology of polarized deep inelastic scattering
• Measurement of the Spin-Dependent Structure Function $g_1(x)$ of the Proton
• Next-to-Leading Order Radiative Parton Model Analysis of Polarized Deep Inelastic Scattering
• Measurements of the $Q^2$-Dependence of the Proton and Neutron Spin Structure Functions g1p and g1n
• Spin Physics and Polarized Structure Functions
• Determination of ${\alpha }_s$ and the Nucleon Spin Decomposition Using Recent Polarized Structure Function Data
• Measurements of the Q2-Dependence of the Proton and Deuteron Spin Structure Functions g1p and g1d
• The next-to-leading QCD approximation to the Ellis-Jaffe sum rule
• Scale Dependence and Small-x Behaviour of Polarized Parton Distributions
• Polarized Nucleon Structure Functions within a Chiral Soliton Model
• The Spin Dependence of Diffractive Processes and Implications for the Small $x$ Behaviour of $g_1$ and the Spin Content of the Nucleon
• Radiative Parton Model Analysis of Polarized Deep Inelastic Lepton Nucleon Scattering
• SPIN-DEPENDENT NUCLEAR STRUCTURE FUNCTIONS: GENERAL APPROACH WITH APPLICATION TO THE DEUTERON
• DEEP INELASTIC SCATTERING FROM POLARIZED DEUTERONS
• The Ellis-Jaffe Sum Rule: The Estimates of the Next-to-Next-to- Leading-Order QCD Corrections
• Next-To-Leading Order Analysis of Polarized and Unpolarized Structure Functions
• Chiral Odd Structure Functions from a Chiral Soliton
• $\mathcal{O}({\alpha }_s)$ Spin-Dependent Weak Structure Functions
• Target Mass Effects in QCD Bjorken Sum Rule
• Polarized Deep-Inelastic Scattering from Nuclei -- A Relativistic Approach
• A model for the $Q^2$ dependence of polarized structure functions
• The Nucleon Spin Problem
• Nucleon Structure Functions in the Three Flavor NJL Soliton Model
• Strangeness Contribution to the Polarized Nucleon Structure Function $g_1(x)$
• Monte Carlo Simulations for RHIC Spin Physics
• Chiral Quark Model
• Nucleon Structure Functions from the NJL-Model Chiral Soliton
• Scale Dependence of Polarized DIS Asymmetries
• Phenomenological determination of polarized quark distributions in the nucleon
• The $Q^2$ dependence of the measured asymmetry $A_1$: the test of the Bjorken sum rule
• Updated Determination of Ellis-Jaffe Sum Rules up to ${\mathrm{N}}^3\mathrm{LO}$ QCD corrections
• Soliton Models for the Nucleon and Predictions for the Nucleon Spin Structure