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arXiv · hep-ph/0509076

Sivers effect in semi-inclusive deeply inelastic scattering

J. C. Collins·A. V. Efremov·K. Goeke·S. Menzel·A. Metz·P. Schweitzer
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Abstract

The Sivers function is extracted from HERMES data on single spin asymmetries in semi-inclusive deeply inelastic scattering. Our analysis use a simple Gaussian model for the distribution of transverse parton momenta, together with the flavor dependence given by the leading 1/Nc approximation and a neglect of the Sivers antiquark distribution. We find that within the errors of the data these approximations are sufficient.

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J. C. Collins, A. V. Efremov, K. Goeke, S. Menzel, A. Metz, P. Schweitzer. 2006-01-24. Sivers effect in semi-inclusive deeply inelastic scattering. https://doi.org/10.1103/physrevd.73.014021

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