arXiv:0910.1677·v1·High Energy Physics — Phenomenology
The spin structure of the nucleon in light-cone quark models
B. Pasquini🇮🇹 · S. Boffi (Pavia U. and INFN, Pavia)🇮🇹 · P. Schweitzer (Connecticut U.)🇺🇸
Abstract
The quark spin densities related to generalized parton distributions in impact-parameter space and to transverse-momentum dependent parton distributions are reviewed within a light-cone quark model, with focus on the role of the different spin-spin and spin-orbit correlations of quarks.Results for azimuthal spin asymmetries in semi-inclusive deep-inelastic scattering due to T-even transverse-momentum dependent parton distributions are also discussed.
Comments: proceedings of the workshop "Recent Advances in Perturbative QCD and Hadronic Physics", 20-25 July 2009, ECT*, Trento (Italy), in Honor of Prof. Anatoly Efremov's 75th Birthday Celebration; also based on the talk given at the workshop "Transverse Partonic Structure of Hadrons", 21-26 June 2009, Yerevan (Armenia); to appear in Mod. Phys. Lett. A