| Precision measurements of strangeness photoproduction at threshold energies with the Crystal Ball at MAMI-C |
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| 作者姓名： | T. C. Jude D. I Glazier D. P. Watts |
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| 作者单位： | The University of Edinburgh, Edinburgh, EH9 3JZ, UK; |
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| 摘 要： | The photoproduction of K＋ mesons from the nucleon provides important constraints on the nucleon excitation spectrum and at threshold energies challenges effective field theories based on chiral perturbation in the strange quark sector. Preliminary cross-section measurements for γ（P, K＋）A are presented at an unprecedented beam energy resolution. The data was collected at the MAMI-C facility in Mainz using the Crystal Ball Detector. A new method of K＋ detection was used in which the K＋ is tagged from its weak decay products in the detector crystals. This technique has application with other calorimeters at present and future hadron facilities.
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| 关 键 词： | 能量分辨率 精密测量 奇异夸克 水晶球 光生 数据收集 产品标签 探测器 |
| 收稿时间： | 2009-8-7 |
Precision measurements of strangeness photoproduction at threshold energies with the Crystal Ball at MAMI-C |
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| T. C. Jude,D. I Glazier,D. P. Watts.Precision measurements of strangeness photoproduction at threshold energies with the Crystal Ball at MAMI-C[J].High Energy Physics and Nuclear Physics,2009,33(12):1358-1361. |
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| Authors: | T C Jude ;D I Glazier ;D P Watts |
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| Institution: | [1]The University of Edinburgh, Edinburgh, EH9 3JZ, UK; [2]Institute fur Kernphysik, Johannes Gutenberg-Universitat Mainz, Mainz, D-55099, Germany |
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| Abstract: | Crystal Ball Detector, strange meson photoproduction |
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| Keywords: | Crystal Ball Detector strange meson photoproduction |
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