Bastami, S. and Avakian, H. and Efremov, A. V. and Kotzinian, A. and Musch, B. U. and Parsamyan, B. and Prokudin, A. and Schlegel, M. and Schnell, G. and Schweitzer, P. and Tezgin, K. (2019) Semi-inclusive deep-inelastic scattering in Wandzura-Wilczek-type approximation. JOURNAL OF HIGH ENERGY PHYSICS (6): 007. ISSN 1029-8479,
Full text not available from this repository. (Request a copy)Abstract
We present the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed O(1/Q(2) terms in the Wandzura-Wilczek-type approximation, which consists in systematically assuming that (q) over bar gq-terms are much smaller than (q) over barq-correlators. We compute all twist-2 and twist-3 structure functions and the corresponding asymmetries, and discuss the applicability of the Wandzura-Wilczek-type approximations on the basis of available data. We make predictions that can be tested by data from COMPASS, HERMES, Jefferson Lab, and the future Electron-Ion Collider. The results of this paper can be readily used for phenomenology and for event generators, and will help to improve the description of semi-inclusive deep-inelastic processes in terms of transverse momentum dependent parton distribution functions and fragmentation functions beyond the leading twist.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SINGLE-SPIN ASYMMETRIES; LORENTZ INVARIANCE RELATIONS; ODD FRAGMENTATION FUNCTIONS; HERMES POLARIZED HYDROGEN; DRELL-YAN; AZIMUTHAL ASYMMETRIES; PARTON DISTRIBUTIONS; SUM-RULES; QUARK POLARIZATION; STATE INTERACTIONS; Deep Inelastic Scattering (Phenomenology); QCD Phenomenology |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Apr 2020 13:35 |
| Last Modified: | 08 Apr 2020 13:35 |
| URI: | https://pred.uni-regensburg.de/id/eprint/26852 |
Actions (login required)
 |
View Item |
