Quark Correlations and Sivers Effect

We illustrate, in a semi-classical picture, how the Wilson-line phase factor in the gauge invariantly defined unintegrated parton density can lead to a nonzero single-spin asymmetry (Sivers effect).

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Bibliographic Details
Published in:Few-body systems 2005-06, Vol.36 (1-4), p.53-60
Main Author: Burkardt, M
Format: Article
Language:English
Subjects:
Asymmetry
Correlation
Density
Gages
Gauges
Particle physics
Partons
Pictures
Quantum theory
Quarks
Online Access:Get full text
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Description
Summary:We illustrate, in a semi-classical picture, how the Wilson-line phase factor in the gauge invariantly defined unintegrated parton density can lead to a nonzero single-spin asymmetry (Sivers effect).
ISSN:0177-7963
1432-5411
DOI:10.1007/s00601-004-0078-7