Goloskokov, S. V. and Kroll, P. (2011) Transversity in hard exclusive electroproduction of pseudoscalar mesons. EUROPEAN PHYSICAL JOURNAL A, 47 (9): 112. ISSN 1434-6001, 1434-601X
Full text not available from this repository. (Request a copy)Abstract
Estimates for electroproduction of pseudoscalar mesons at small values of skewness are presented. Cross-sections and asymmetries for these processes are calculated within the handbag approach which is based on factorization in hard parton subprocesses and soft generalized parton distributions (GPDs). The latter are constructed from double distributions. Transversity GPDs are taken into account; they are accompanied by twist-3 meson wave functions. For most pseudoscalar-meson channels a combination of (H) over tilde (T) and (H) over bar (T) plays a particularly prominent role. This combination of GPDs, which we constrain by moments obtained from lattice QCD, leads, with the exception of the pi(+) and eta' channels, to large transverse cross-sections.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GENERALIZED PARTON DISTRIBUTIONS; 2 VECTOR-MESONS; FORM-FACTORS; CROSS-SECTION; HELICITY FLIP; PI(+) MESONS; QCD; SCATTERING; PHOTOPRODUCTION; HYDROGEN; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Jun 2020 05:13 |
| Last Modified: | 02 Jun 2020 05:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/20219 |
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