Chromodynamic Lensing and $\perp$ Single Spin Asymmetries
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
The physical interpretation of generalized parton distributions (in the limit ) as Fourier transforms of impact parameter dependent parton distributions is discussed. Particular emphasis is put on the role of the target polarization. For transversely polarized targets we expect a significant deviation from axial symmetry for the distribution in the transverse plane. We conjecture that this transverse distortion, in combination with the final state provides a natural explanation for the sign of the Sivers contribution to semi-inclusive single-spin asymmetries.
Keywords
Cite
@article{arxiv.hep-ph/0309269,
title = {Chromodynamic Lensing and $\perp$ Single Spin Asymmetries},
author = {Matthias Burkardt},
journal= {arXiv preprint arXiv:hep-ph/0309269},
year = {2007}
}
Comments
8 pages, invited talk given at workshop on `light-cone 2003: Hadrons and Beyond' (Durham, August 2003) and at `NAPP 2003' (Dubrovnik, Croatia, May 2003)