Goloskokov, S. V. and Kroll, P. (2014) Transversity in exclusive vector-meson leptoproduction. EUROPEAN PHYSICAL JOURNAL C, 74 (2): 2725. ISSN 1434-6044, 1434-6052
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The role of transversity or helicity-flip generalized parton distributions (GPDs) in leptoproduction of vector mesons is investigated within the framework of the handbag approach. The transversity GPDs in combination with twist-3 meson wave functions occur in the amplitudes for transitions from a transversely polarized virtual photon to a longitudinal polarized vector meson. The importance of the transversity GPDs can be examined in some of the spin density matrix elements and in transverse target spin asymmetries. Using suitable parametrizations of both helicity-flip and -non-flip GPDs, which are essentially taken from our previous papers, we estimate these observables and compare the results with available data.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GENERALIZED PARTON DISTRIBUTIONS; DISTRIBUTION AMPLITUDES; FORM-FACTORS; ELECTROPRODUCTION; QUARK; RHO(0); GPDS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 27 Nov 2019 10:17 |
| Last Modified: | 27 Nov 2019 10:17 |
| URI: | https://pred.uni-regensburg.de/id/eprint/10684 |
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