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arXiv · hep-ph/0408009

Quark correlations and single-spin asymmetries

Matthias Burkardt
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Abstract

We illustrate, in a semi-classical picture, how the Wilson line phase factor in gauge invariantly defined unintegrated parton density can lead to a nonzero single-spin asymmetry (Sivers effect).

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Matthias Burkardt. 2004-08-01. Quark correlations and single-spin asymmetries. https://doi.org/10.1016/j.nuclphysbps.2004.12.014

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