| Determination of event start time at BESⅢ |
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| 作者姓名： | 马想 |
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| 作者单位： | Institute of High Energy Physics，CAS，Nanjing University，Tsinghua University，Zhengzhou University，Shandong University，Peking University，Liaoning University，Guangxi Normal University，Department of Modern Physics，University of Science and Technology of China，Graduate University of Chinese Academy of Sciences |
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| 摘 要： | The principle of the method for the BESⅢ event start time determination and the code construction are described. The investigation of influence of the noise, the method of rejecting noise and the performance checking by the Monte Carlo physics data sample are also presented. The preliminary results got from the Monte Carlo simulation are presented, the reconstruction efficiency of J/ψ→ anything events at noise level 0~60% can achieve above 99%, and the error rate is below 1%.
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| 关 键 词： | event start time time-of-flight drift-chamber track reconstruction |
| 收稿时间： | 2007-11-19 |
| 修稿时间： | 2007-12-11 |
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