Connection between the Sivers function and the anomalous magnetic moment

Details Connection between the Sivers function and the anomalous magnetic moment Connection between the Sivers function and the anomalous magnetic moment

2006-11-11

arxiv.org/abs/hep-ph/0611158v2

Phys.Rev.D75:073008,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Figures and references added, version to appear in Physical Review D

Scientific paper

10.1103/PhysRevD.75.073008

The same light-front wave functions of the proton are involved in both the anomalous magnetic moment of the nucleon and the Sivers function. Using the diquark model, we derive a simple relation between the anomalous magnetic moment and the Sivers function, which should hold in general with good approximation. This relation can be used to provide constraints on the Sivers single spin asymmetries from the data on anomalous magnetic moments. Moreover, the relation can be viewed as a direct connection between the quark orbital angular momentum and the Sivers function.

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