x-Dependent Polarized Parton Distributions

Abstract

Using QCD motivated and phenomenological considerations, we construct x- dependent polarized parton distributions, which evolve under GLAP evolution, satisfy DIS data and are within positivity constraints. Each flavor is done separately and the overall set can be used to predict polarization asymmetries for various processes. We perform our NLO analysis strictly in x space, avoiding difficulties in moment inversion. Small-x results and other physical considerations are discussed.

30 pages, 11 Postscript figures

References in corpus (12)

• Precision Determination of the Neutron Spin Structure Function g1n
• Measurement of the Neutron Spin Structure Function $g_1^n$ with a Polarized ^3He Target
• Spin Structure of the Proton from Polarized Inclusive Deep-Inelastic Muon-Proton Scattering
• Numerical solution of Q^2 evolution equations for polarized structure functions
• Measurement of the Proton and Deuteron Spin Structure Function g_1 in the Resonance Region
• Chiral Quark Model of Nucleon Spin-Flavor Structure with SU(3) and Axial-U(1) Breakings
• Next-to-Leading Order Analysis of Inclusive and Semi-inclusive Polarized Data
• How Much of the Nucleon Spin is Carried by Glue?
• Light-Cone Wavefunctions at Small $x$
• Probing Nucleon Spin Structure
• Prompt Photon Plus Jet Photoproduction at HERA at Next-to-Leading Order in QCD
• Remarks on Next-to-Leading Order Analysis of Polarized Deep Inelastic Scattering Data

Cited by in corpus (23)

• Models for the Polarized Parton Distributions of the Nucleon
• QCD Analysis of Polarized Deep Inelastic Data and Parton Distributions
• Polarized Parton Distribution Functions in the Nucleon
• Determination of polarized parton distribution functions and their uncertainties
• Determination of gluon polarization from deep inelastic scattering and collider data
• Determination of polarized parton distribution functions with recent data on polarization asymmetries
• Inclusive and Semi-Inclusive Polarized DIS Data Revisited
• Next-to-leading order jet cross sections in polarized hadronic collisions
• The Jacobi Polynomials QCD analysis for the polarized structure function
• Polarized Deeply Inelastic Scattering (DIS) Structure Functions for Nucleons and Nuclei
• QCD analysis of polarized DIS and the SIDIS asymmetry world data and light sea-quark decomposition
• Quark Distributions of Octet Baryons from SU(3) Symmetry
• The Role of Polarized Valons in the Flavor Symmetry Breaking of Nucleon Sea
• A QCD Analysis of Polarised Parton Densities
• Gluon Virtuality and Heavy Sea Quark Contributions to the Spin-Dependent g_1 Structure Function
• Impact of recent COMPASS data on polarized parton distributions and structure functions
• Spin Structure of the Proton and Large p_T Processes in Polarized pp Collisions
• Spin Dependence of Associated Production of a Prompt Photon and a Charm Quark at Next-to-Leading Order in QCD
• An x-Space Analysis of Evolution Equations: Soffer's Inequality and the Non-forward Evolution
• Extraction of Polarized Gluon Distributions from Large-pt Light Hadron Pair Production
• The Kinetic Interpretation of the DGLAP Equation, its Kramers-Moyal Expansion and Positivity of Helicity Distributions
• Single Diffractive Lambda_c^+ Production in Polarized pp Scattering with Polarized Gluon Distribution in the Proton
• Polarized Parton Distributions and the Polarized Gluon Asymmetry