Braun, V. M. and Manashov, A. N. and Pirnay, B. (2012) Finite-t and target mass corrections to deeply virtual Compton scattering on a scalar target. PHYSICAL REVIEW D, 86 (1): 014003. ISSN 2470-0010, 2470-0029
Full text not available from this repository.Abstract
Using the recently developed formalism we carry out the first complete calculation of kinematic power corrections to the helicity amplitudes of deeply-virtual Compton scattering to the twist-four accuracy for a study case of a (pseudo) scalar target. Our main result is that both finite-t, similar to t/Q(2), and target mass, similar to m(2)/Q(2), twist-four kinematic power corrections turn out to be factorizable, at least to the leading order in the strong coupling. The structure of these corrections is discussed and a short model study of their numerical impact is presented.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GENERALIZED PARTON DISTRIBUTIONS; WANDZURA-WILCZEK APPROXIMATION; DISTRIBUTION AMPLITUDES; 2-PHOTON PROCESSES; HIGHER TWIST; SUM-RULES; QCD; ELECTROPRODUCTION; INVARIANCE; OPERATORS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Braun Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 May 2020 06:13 |
| Last Modified: | 11 May 2020 06:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/18460 |
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