Spin structure of the nucleon on the light front

Abstract

We briefly review the spin structure of the nucleon and show that it is best thought in the light-front formulation. We discuss in particular the longitudinal and transverse spin sum rules, the proper definition of canonical orbital angular momentum and the spin-orbit correlation.

arXiv comment6 pages, 1 figure, 1 table, contribution to the proceedings of the LightCone2014 Workshop, May 26-30, Raleigh, USA

References in corpus (46)

• Gauge-Invariant Decomposition of Nucleon Spin and Its Spin-Off
• Parton Physics on Euclidean Lattice
• Impact Parameter Dependent Parton Distributions and Off-Forward Parton Distributions for $\zeta \to 0$
• The angular momentum controversy: What's it all about and does it matter?
• Generalized parton correlation functions for a spin-1/2 hadron
• Nucleon structure from mixed action calculations using 2+1 flavors of asqtad sea and domain wall valence fermions
• Quark Wigner Distributions and Orbital Angular Momentum
• Spin and orbital angular momentum in gauge theories: Nucleon spin structure and multipole radiation revisited
• Reply to the Comment on "Spin and orbital angular momentum in gauge theories: Nucleon spin structure and multipole radiation revisited" [PRL 100:232002 (2008)]
• Spin and orbital angular momentum in gauge theories (II): QCD and nucleon spin structure
• Determination of Polarized PDFs from a QCD Analysis of Inclusive and Semi-inclusive Deep Inelastic Scattering Data
• Transverse momentum dependent parton distributions in a light-cone quark model
• Notes on the orbital angular momentum of quarks in the nucleon
• The quark orbital angular momentum from Wigner distributions and light-cone wave functions
• Transverse Deformation of Parton Distributions and Transversity Decomposition of Angular Momentum
• Proton Spin Structure from Measurable Parton Distributions
• Structure analysis of the generalized correlator of quark and gluon for a spin-1/2 target
• Unified framework for generalized and transverse-momentum dependent parton distributions within a 3Q light-cone picture of the nucleon
• Chiral-odd generalized parton distributions in constituent quark models
• Linking generalized parton distributions to constituent quark models
• On Gauge-Invariant Decomposition of Nucleon Spin
• DVCS amplitude in the parton model
• Do gluons carry half of the nucleon momentum?
• Is gauge-invariant complete decomposition of the nucleon spin possible ?
• Parton Orbital Angular Momentum and Final State Interactions
• Twist analysis of the nucleon spin in QCD
• Gauge- and frame-independent decomposition of nucleon spin
• Wilson lines and orbital angular momentum
• Twist-2 Generalized TMDs and the Spin/Orbital Structure of the Nucleon
• Geometrical approach to the proton spin decomposition
• On the Origin of Model Relations among Transverse-Momentum Dependent Parton Distributions
• Measurement of Dijet Production at Low Q^2 at HERA
• Helicity-dependent generalized parton distributions in constituent quark models
• Spin-orbit correlations in the nucleon
• Drell-Yan processes, transversity and light-cone wavefunctions
• Pretzelosity TMD and Quark Orbital Angular Momentum
• Tensor charges of light baryons in the Infinite Momentum Frame
• Twist-three relations of gluonic correlators for the transversely polarized nucleon
• A critical assessment of the angular momentum sum rules
• On transverse spin sum rules
• Improvement of the Theta+ width estimation method on the Light Cone
• Gauge-covariant canonical formalism revisited with application to the proton spin decomposition
• Baryon vector and axial content up to the 7Q component
• Gauge symmetry and background independence: Should the proton spin decomposition be path independent?
• Hamiltonian analysis of the proposal by Chen et. al., PRL 100 (2008) 232002
• Reply to the Comment of X. Ji on "Do gluons carry half of the nucleon momentum?" [PRL 103:062001 (2009)]