The Role of Gauge Invariance in Single-Spin Asymmetries
arXiv:0706.4017
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.
Talk presented at the 15th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2007), April 16-20, 2007, Munich, Germany
References in corpus (6)
- k_T factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions
- Universal Structure of Twist-3 Soft-Gluon-Pole Cross Sections for Single Transverse-Spin Asymmetry
- The Sivers single-spin asymmetry in photon-jet production
- Single Transverse-Spin Asymmetry in Hadronic Dijet Production
- Asymmetric Di-jet Production in Polarized Hadronic Collisions
- Measurement of Sivers Asymmetries for Di-jets in \sqrt{s}=200 GeV pp Collisions at STAR