The Role of Gauge Invariance in Single-Spin Asymmetries

Details The Role of Gauge Invariance in Single-Spin Asymmetries The Role of Gauge Invariance in Single-Spin Asymmetries

2007-06-27

arxiv.org/abs/0706.4017v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented at the 15th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2007), April 16-20, 2

Scientific paper

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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