QCD Spin Physics: Partonic Spin Structure of the Nucleon

Abstract

We discuss some recent developments concerning the nucleon's helicity parton distribution functions: New preliminary data from jet production at RHIC suggest for the first time a non-vanishing polarization of gluons in the nucleon. SIDIS measurements at COMPASS provide better constraints on the strange and light sea quark helicity distributions. Single-longitudinal spin asymmetries in W-boson production have been observed at RHIC and will ultimately give new insights into the light quark and anti-quark helicity structure of the nucleon.

Talk presented at the "International School of Nuclear Physics, 33rd Course: From Quarks and Gluons to Hadrons and Nuclei", Erice, Italy, 16 - 24 September 2011; 12 pages, 9 figures

References in corpus (13)

• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Global Analysis of Helicity Parton Densities and Their Uncertainties
• QCD Analysis of the Polarized World Data
• Quark helicity distributions from longitudinal spin asymmetries in muon-proton and muon-deuteron scattering
• Measurement of Parton Distributions of Strange Quarks in the Nucleon from Charged-Kaon Production in Deep-Inelastic Scattering on the Deuteron
• On Gauge-Invariant Decomposition of Nucleon Spin
• Cross Section and Parity Violating Spin Asymmetries of W^+/- Boson Production in Polarized p+p Collisions at sqrt(s)=500 GeV
• Measurement of the parity-violating longitudinal single-spin asymmetry for $W^{\pm }$ boson production in polarized proton-proton collisions at $\sqrt{s}=500$GeV
• On the controversy concerning the definition of quark and gluon angular momentum
• Threshold Resummation for W-Boson Production at RHIC
• Helicity Parton Distributions from Spin Asymmetries in W-Boson Production at RHIC
• Towards the NNLO evolution of polarised parton distributions
• Hadron-Pair Photoproduction in Longitudinally Polarized Lepton-Nucleon Collisions

Cited by in corpus (20)

• A first unbiased global determination of polarized PDFs and their uncertainties
• Generalized Parton Distributions in the valence region from Deeply Virtual Compton Scattering
• Parton momentum and helicity distributions in the nucleon
• Flavor Structure of the Nucleon Sea
• Accessing proton generalized parton distributions and pion distribution amplitudes with the exclusive pion-induced Drell-Yan process at J-PARC
• Next-to-next-to-leading order QCD analysis of spin-dependent parton distribution functions and their uncertainties: Jacobi polynomials approach
• Helicity Parton Distributions at a Future Electron-Ion Collider: A Quantitative Appraisal
• Prospects for Charged Current Deep-Inelastic Scattering off Polarized Nucleons at a Future Electron-Ion Collider
• Nuclear physics with a medium-energy Electron-Ion Collider
• Analysis of the double-spin asymmetry A_LT in inelastic nucleon-nucleon collisions
• Polarized Parton Distributions at an Electron-Ion Collider
• Polarized semi-inclusive electroweak structure functions at next-to-leading-order
• Measurement of pretzelosity asymmetry of charged pion production in Semi-Inclusive Deep Inelastic Scattering on a polarized ${}^3$He target
• Neutron knockout in neutral-current neutrino-oxygen interactions
• Spin asymmetries for vector boson production in polarized p+p collisions
• Longitudinally Polarized Photoproduction of Heavy Flavors at Next-to-Leading Order of QCD
• QCD Evolution Workshop: Introduction
• SPIN Effects, QCD, and Jefferson Laboratory with 12 GeV electrons
• Spin correlations in the Drell-Yan process, parton entanglement, and other unconventional QCD effects
• Recent results of high-energy spin phenomena of gluons and sea-quarks in polarized proton-proton collisions at RHIC at BNL