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arxiv: 1008.1921 · v1 · submitted 2010-08-11 · ✦ hep-ph · hep-ex· hep-lat

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Quark orbital angular momentum: can we learn about it from GPDs and TMDs?

H.Avakian , A.V.Efremov , P.Schweitzer , O.V.Teryaev , P.Zavada
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classification ✦ hep-ph hep-exhep-lat
keywords momentumquarkangulardistributionfunctionsinformationknownorbital
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It is known how to access information on quark orbital angular momentum from generalized parton distribution functions, in a certain specified framework. It is intuitively expected, that such information can be accessed also through transverse momentum dependent distribution functions, but not known how. Now quark models provide promising hints. Recent results are reviewed.

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  1. GTMDs, orbital angular momentum, and pretzelosity

    hep-ph 2026-05 unverdicted novelty 4.0

    In the bag model, GTMD calculations are consistent, orbital angular momentum is tied to F_{1,4}^q through the Ji sum rule, and a deeper link to pretzelosity TMD is established.