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arXiv · hep-ph/0411118

Recent progress in the understanding of single spin asymmetries

A. Metz·M. Schlegel
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Abstract

Over the past years a lot of progress has been made in the understanding of single spin asymmetries in hard scattering processes. We briefly review this subject, covering the non-vanishing of time-reversal odd parton distributions, universality of fragmentation functions, and the discovery of previously unknown time-reversal odd parton distributions at subleading twist. Interestingly enough, all these developments were initiated by simple model calculations.

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A. Metz, M. Schlegel. 2004-11-12. Recent progress in the understanding of single spin asymmetries. https://doi.org/10.1002/andp.200410112

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