Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleQuark Correlations and Sivers Effect.AuthorsBurkardt, M.AbstractWe 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).SubjectsQUARKS; PARTONS; PARTICLES (Nuclear physics); NUCLEAR physics; QUANTUM theory; FEW-body problemPublicationFew-Body Systems, 2005, Vol 36, Issue 1-4, p53ISSN0177-7963Publication typeArticleDOI10.1007/s00601-004-0078-7