| Angular Distributions for φ＇ Sequential Decays into 2（π^＋π^-）pp^-γ via XCJ |
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| 作者姓名： | PING Rong-Gang YUAN Chang-Zheng |
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| 作者单位： | [1]CCAST （World Lab.）, P.O. Box 8730, Beijing 100080, China [2]Institute of High Energy Physics, the Chinese Academy of Sciences, P.O. Box 918（1）, Beijing 100049, China |
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| 基金项目： | The project partly supported byNational Natural Science Foundation of China under Grant Nos. 10447130, 10375074, 19991480,10225524, and 10225525 |
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| 摘 要： | Amplitudes for φ（2S） sequential decays into 2（π^＋π^-）pp^-γ via XCJ are constructed in effective coupling scheme. A Mote-Carlo simulation is carried out to study angular distributions of the decayed particles in laboratory system. The results can be taken as a reference for measuring the decay of XCJ into at BESⅡ/BEPC in the near future.
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| 关 键 词： | 角分配 粲素衰变 蒙特卡罗模拟 振幅 原子核物理 |
| 收稿时间： | 2005-04-13 |
| 修稿时间： | 2005-04-13 |
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