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arXiv · 1112.0904

QCD Spin Physics: Partonic Spin Structure of the Nucleon

D. de Florian·R. Sassot·M. Stratmann·W. Vogelsang
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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.

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D. de Florian, R. Sassot, M. Stratmann, W. Vogelsang. 2011-12-05. QCD Spin Physics: Partonic Spin Structure of the Nucleon. https://doi.org/10.1016/j.ppnp.2011.12.027

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