Radiative Parton Model Analysis of Polarized Deep Inelastic Lepton Nucleon Scattering

Abstract

A leading order QCD analysis of spin asymmetries in polarized deep inelastic lepton nucleon scattering is presented within the framework of the radiative parton model. Two resulting sets of plausible leading order spin dependent parton distributions are presented, respecting the fundamental positivity constraints down to the low resolution scale $Q^2={\mu }_{LO}^2=0.23$ GeV${}^2$. The $Q^2$ dependence of the spin asymmetries $A_1^{p,n,d}(x,Q^2)$ is investigated in the range $1\le Q^2\le 20$ GeV${}^2$ and shown to be non-negligible for $x$-values relevant for the analysis of present data and possibly forthcoming data at HERA.

13 Pages, LateX, 7 figures as eps-files

References in corpus (10)

• Measurement of the Spin-Dependent Structure Function $g_1(x)$ of the Proton
• QCD Constrains on the Shape of Polarized Quark and Gluon Distributions
• Consistent Analysis of the Spin Content of the Nucleon
• Analysis of Data on Polarized Lepton-Nucleon Scattering
• Spin-dependent Parton Distributions from Polarized Structure Function Data
• On the Q^2 Dependence of Measured Polarized Structure Funtions
• Scale Dependence and Small-x Behaviour of Polarized Parton Distributions
• The Spin Dependence of Diffractive Processes and Implications for the Small $x$ Behaviour of $g_1$ and the Spin Content of the Nucleon
• Spin Contents of Nucleons with SU(3) Breaking
• How to Use Weak Decays in Analyses of Data on Nucleon Spin Structure Functions

Cited by in corpus (31)

• Transverse Polarisation of Quarks in Hadrons
• Next-to-Leading Order Radiative Parton Model Analysis of Polarized Deep Inelastic Scattering
• Polarized Parton Distributions in the Nucleon
• Spin Physics and Polarized Structure Functions
• On the Behaviour of Non--Singlet Structure Functions at Small $x$
• Accessing transversity via J/Psi production in polarized p-pbar interactions
• On the QCD Evolution of the Transversity Distribution
• Double-Spin Transverse Asymmetries in Drell-Yan Processes
• The Jacobi Polynomials QCD analysis for the polarized structure function
• QCD expectations for the spin structure function $g_1$ in the low $x$ region
• Next-to-Leading order approximation of polarized valon and parton distributions
• Unified description of the non-singlet spin dependent structure function $g_1$ incorporating Altarelli-Parisi evolution and the double logarithmic $l{n}^2(1/x)$ effects at low $x$
• Probing Nucleon Spin Structure
• Testing various polarized parton distributions at RHIC
• Spin asymmetries in one-jet production at RHIC with polarized proton beams : the effects of a hadrophilic Z'
• Moments of generalized parton distribution functions and the nucleon spin contents
• Sensitivity to a new right-handed charged current in polarized hadronic collisions at RHIC
• Discovery limits for a new contact interaction at future hadronic colliders with polarized beams
• Theoretical issues of small $x$ physics
• HERA prospects on Compositeness and New Vector Bosons
• QCD predictions for spin dependent photonic structure function $g_1^{\gamma }(x,Q^2)$ in the low x region of future linear colliders
• Nuclear Modifications of Double Spin Asymmetries
• An analysis of polarized parton distribution functions with nonlinear QCD evolution equations
• Semi-inclusive Lambda_c^+ Leptoproductions and Polarized Gluon Distributions
• Isovector helicity quark quasi-distributions inside a large Nc nucleon
• Detect ΔG at BNL-RHIC via Double Quarkonium Production
• Production of $J/\psi$-pairs at HERA-$\vec{\mathrm{N}}$
• ${\psi }^{\prime }$ productions as a test of color-octet mechanism
• Detect Gluon Polarisation at BNL-RHIC Through J/ψPair Production Process
• Asymmetry Effects in Polarized Hadron Scattering
• Hard Processes with Spin-Dependent Parton Distributions