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Full text not available from this repository. (Request a copy)Abstract
A single-spin asymmetry in the distribution of exclusively produced pi(+) mesons azimuthally around the virtual photon direction relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off longitudinally polarized protons. Integrated over the experimental acceptance, the sin moment of the polarization asymmetry of the cross section is measured to be -0.18 +/- 0.05(stat.) +/- 0.02(syst.). The asymmetry is also studied as a function of the relevant kinematic variables, and its magnitude is found to grow with decreasing x and increasing -t and vanish at t --> t(min) (where x is the Bjorken scaling variable and t is the squared four-momentum transferred to the nucleon). (C) 2002 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LEADING ORDER; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Oct 2021 07:18 |
| Last Modified: | 26 Oct 2021 07:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/40244 |
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