Ivanov, D. Y. and Pire, B. and Szymanowski, L. and Teryaev, O. V. (2002) Probing chiral-odd GPDs in diffractive electroproduction of two vector mesons. PHYSICS LETTERS B, 550 (1-2). pp. 65-76. ISSN 0370-2693
Full text not available from this repository.Abstract
We consider the electroproduction of two vector mesons with a large rapidity gap between them on a nucleon target in the process gamma*N --> rho(1)rho(2)N'. We calculate the Born term for this process within the collinear factorization framework. The resulting scattering amplitude may be represented as a convolution of an impact factor describing the gamma* --> rho(1) transition and an amplitude describing the N --> rho(2)N' transition. The latter amplitude is analogous to deeply virtual electroproduction of a meson, the virtual photon being replaced by two gluon (Pomeron) exchange. The long distance part of this amplitude is described by generalized parton distributions (GPD) and meson light-cone distributions. The selection of a transversely polarized vector meson rho(2) provides the first feasible selective access to chiral-odd GPD. (C) 2002 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HARD EXCLUSIVE ELECTROPRODUCTION; VIRTUAL COMPTON-SCATTERING; PARTON DISTRIBUTIONS; HELICITY-FLIP; FACTORIZATION; PHOTOPRODUCTION; EVOLUTION; PROOF; QCD; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Aug 2021 10:51 |
| Last Modified: | 26 Aug 2021 10:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39569 |
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