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| Photoproduction of ω-Mesons at ELSA and the role of azimuthal asymmetries | |
| 引用本文： | H. Schmieden (for the CBELSA/TAPS collaboration). Photoproduction of ω-Mesons at ELSA and the role of azimuthal asymmetries[J]. 中国物理 C, 2009, 33(12): 1146-1152 |
| 作者姓名： | H. Schmieden (for the CBELSA/TAPS collaboration) |
| 作者单位： | Rheinische Friedrich-Wilhelms-Universität, Physikalisches Institut, D-53115 Bonn, Germany |
| 基金项目： | Supported by German Science Foundation （DFG） in the frame ot the SFB/TR-16 |
| 摘 要： | Measurements of ω photoproduction of the Crystal-Barrel/TAPS experiment at the ELSA accelerator of Bonn University are presented which used linearly polarized tagged photon beam from threshold to Eγ = 1700MeV. The azimuthal asymmetries ∑and ∑πindicate s-channel resonance contributions on top of the established t-channel exchange processes. These findings are further enhanced by a very first measurement of the G-asymmetry which, in addition to the polarized photon beam, also requires a longitudinally polarized proton target. An intuitive interpretation of the specific sensitivity of the azimuthal asymmetries to the reaction mechanisms involved is given. |
| 关 键 词： | 不对称 方位角 艾尔莎 光生 介子 合作 线性极化 实验测量 |
| 收稿时间： | 2009-08-07 |
Photoproduction of co-Mesons at ELSA and the role of azimuthal asymmetries |
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| H. Schmieden. Photoproduction of co-Mesons at ELSA and the role of azimuthal asymmetries[J]. High Energy Physics and Nuclear Physics, 2009, 33(12): 1146-1152 | |
| Authors: | H. Schmieden |
| Affiliation: | Rheinische Friedrich-Wilhelms-Universitat, Physikalisches Institut, D-53115 Bonn, Germany |
| Abstract: | baryon resonances, photoproduction, vector mesons, polarization |
| Keywords: | baryon resonances photoproduction vector mesons polarization |
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