Scimemi, Ignazio and Vladimirov, Alexey (2018) Matching of transverse momentum dependent distributions at twist-3. EUROPEAN PHYSICAL JOURNAL C, 78 (10): 802. ISSN 1434-6044, 1434-6052
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We derive the leading order matching of the quark generated polarized transverse momentum dependent (TMD) distributions onto the collinear functions at small values of the transverse distance. Starting from the very definition of the TMD operator and performing the light-cone operator product expansion up to twist-3 order, we evaluate each distribution directly in position space. We primarily consider the cases of Sivers, Boer-Mulders and worm-gear functions. The effects of the TMD process dependence on the matching are explicitly shown. We also discuss the moments of TMD distributions which can be relevant for lattice calculations.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DRELL-YAN; DISTRIBUTION AMPLITUDES; SPIN ASYMMETRIES; VECTOR-MESONS; QCD; EVOLUTION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Dec 2019 14:10 |
| Last Modified: | 05 Dec 2019 14:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/13712 |
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