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arXiv · 2605.06412

GTMDs, orbital angular momentum, and pretzelosity

Brean Maynard·Peter Schweitzer
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Abstract

The leading Generalized Transverse Momentum Dependent parton distributions (GTMDs) are studied in the bag model. The model description is shown to be theoretically consistent. The orbital angular momentum is studied in terms of the GTMD $F_{1,4}^q$ and Ji sum rule. Analytical proofs of the associated sum rules are given. A deeper relationship between orbital angular momentum and the pretzelosity TMD is established in this model.

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Brean Maynard, Peter Schweitzer. 2026-05-07. GTMDs, orbital angular momentum, and pretzelosity. https://arxiv.org/abs/2605.06412

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