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arXiv · 0706.4017

The Role of Gauge Invariance in Single-Spin Asymmetries

C. J. Bomhof·P. J. Mulders
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Abstract

We argue that through the Wilson lines, gauge invariance has as an effect that the hard functions in weighted spin-asymmetries in hadronic scattering processes are given by gluonic pole cross sections, rather than the usual partonic cross sections.

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C. J. Bomhof, P. J. Mulders. 2007-06-27. The Role of Gauge Invariance in Single-Spin Asymmetries. https://arxiv.org/abs/0706.4017

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