Sivers effect in semi-inclusive deeply inelastic scattering

Details Sivers effect in semi-inclusive deeply inelastic scattering Sivers effect in semi-inclusive deeply inelastic scattering

2005-09-08

arxiv.org/abs/hep-ph/0509076v2

Phys.Rev. D73 (2006) 014021

Physics

High Energy Physics

High Energy Physics - Phenomenology

Small additions, Fig.2 corrected, references and one figure added, correction in Eq.(13), version accepted for publication

Scientific paper

10.1103/PhysRevD.73.014021

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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