期刊
PHYSICAL REVIEW D
卷 81, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.81.074035
关键词
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资金
- RFBR [09-02-01149, 07-02-91557]
- RF MSE RNP [2.1.1/2512]
- JINR
- DOE under Jefferson Science Associates, LLC [DE-AC05-06OR23177]
- RIKEN
- Brookhaven National Laboratory
- U.S. Department of Energy [DE-AC02-98CH10886]
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 are 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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