The Role of Gauge Invariance in Single-Spin Asymmetries

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

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/132537

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.4017
 http://arxiv.org/abs/0706.4017

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arXiv