Polarized Parton Distributiions and Light-Front Dynamics

Abstract

We present a consistent calculation of the structure functions within a light-front constituent quark model of the nucleon. Relativistic effects and the relevance of the covariance constraints are analyzed for both polarized and unpolarized parton distributions. Various models, which differ in their gluonic structure at the hadronic scale, are investigated. The results of the full covariant calculation are compared with those of a non-relativistic approximation to show the structure and magnitude of the differences.

31 pages, 9 figures, major revision

References in corpus (9)

• Explicitly Covariant Light-Front Dynamics and Relativistic Few-Body Systems
• The Quark Spin Distributions of the Nucleon
• NLO QCD Analysis of Polarized Deep Inelastic Scattering
• Polarized Parton Densities in the Nucleon
• Next-to-Leading Order Analysis of Inclusive and Semi-inclusive Polarized Data
• Scheme Dependence in Polarized Deep Inelastic Scattering
• Polarized structure functions in a constituent quark scenario
• Covariant Quark Model for the Baryons
• Gluon Spin in a Quark Model

Cited by in corpus (33)

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• Double parton correlations in constituent quark models
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• Virtual meson cloud of the nucleon and generalized parton distributions
• Generalized parton distributions and composite constituent quarks
• Double parton correlations and constituent quark models: a Light Front approach to the valence sector
• Correlations in Double Parton Distributions: Perturbative and Non-Perturbative effects
• Transverse-momentum dependent parton distribution functions beyond leading twist in quark models
• Parton correlations in same-sign $W$ pair production via double parton scattering at the LHC
• New anomalous trajectory in Regge theory
• Relativistic effects in model calculations of double parton distribution function
• Double parton scattering: a study of the effective cross section within a Light-Front quark model
• Nonperturbative versus perturbative effects in generalized parton distributions
• NNLO nucleon parton distributions from a light-cone quark model dressed with its virtual meson cloud
• Diffractive incoherent vector meson production off protons: a quark model approach to gluon fluctuation effects
• Double parton scattering and the proton transverse structure at the LHC
• Helicity-dependent generalized parton distributions and composite constituent quarks
• Generalized Parton Distributions: confining potential effects within AdS/QCD
• Collinear parton distributions and the structure of the nucleon sea in a light-front meson-cloud model
• Relativity and constituent quark structure in model calculations of parton distributions
• Charge symmetry violation: a NNLO study of partonic observables
• Spin force dependence of the parton distributions: the ratio $F_2^n(x,Q^2)/F_2^p(x,Q^2)$
• Orbital Angular Momentum Parton Distributions in Light-Front Dynamics
• Probing Relativistic Spin Effects in the Nucleon by Means of Drell-Yan Processes
• Double parton distributions in Light-Front constituent quark models
• Double parton scattering and 3D proton structure: A Light-Front analysis
• Generalized parton distributions of the nucleon in constituent quark models
• Double parton correlations in Light-Front constituent quark model
• Nucleon 3D structure from double parton scattering: a Light-Front quark model analysis