QCD Spin Physics: Partonic Spin Structure of the Nucleon

Details QCD Spin Physics: Partonic Spin Structure of the Nucleon QCD Spin Physics: Partonic Spin Structure of the Nucleon

2011-12-05

arxiv.org/abs/1112.0904v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented at the "International School of Nuclear Physics, 33rd Course: From Quarks and Gluons to Hadrons and Nuclei", Er

Scientific paper

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.

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