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arXiv · 1001.5467

The transverse momentum dependent distribution functions in the bag model

H. Avakian·A. V. Efremov·P. Schweitzer·F. Yuan
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Abstract

Leading and subleading twist transverse momentum dependent parton distribution functions (TMDs) are studied in a quark model framework provided by the bag model. A complete set of relations among different TMDs is derived, and the question is discussed how model-(in)dependent such relations are. A connection of the pretzelosity distribution and quark orbital angular momentum is derived. Numerical results are presented, and applications for phenomenology discussed. In particular, it is shown that in the valence-x region the bag model supports a Gaussian Ansatz for the transverse momentum dependence of TMDs.

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H. Avakian, A. V. Efremov, P. Schweitzer, F. Yuan. 2010-01-29. The transverse momentum dependent distribution functions in the bag model. https://doi.org/10.1103/physrevd.81.074035

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