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.

• Publication year

  2011

• Venue

  Progress in Particle and Nuclear Physics

• Publication date

  2011-12-05

• Fields of study

  Physics

• Identifiers
  DOI 10.1016/j.ppnp.2011.12.027arXiv 1112.0904
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• Reply to the comment of Huey-Wen Lin and Keh-Fei Liu on "Controversy concerning the definition of quark and gluon angular momentum" by E. Leader (arXiv:1111.0678, PRD 83, 096012 (2011))

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