| Time calibration for the end cap TOF system of BESⅢ |
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| 作者姓名： | 赵川 孙胜森 李澄 张晓杰 何康林 安琪 陈宏芳 代洪亮 封常青 衡月昆 黄亚齐 黄燕萍 郭建华 李卫东 李秀荣 刘芳 刘怀民 刘树彬 刘曙东 刘勇 马想 毛泽普 邵明 孙勇杰 孙志嘉 吴金杰 杨桂安 赵雷 朱兴旺 左嘉旭 |
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| 作者单位： | 1. Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | Supported by National Natural Science Foundation of China (10565001,10647002,10979003,10875138,11005122) |
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| 摘 要： | The time calibration for end cap TOF system of BESⅢ is studied in this paper. It has achieved about 110 ps time resolution for muons in dimu events. The pulse height correction using electronic scan curve and the predicted time calculated using Kalman filter method are introduced. This paper also describes the study of using electrons and muons as calibration samples.
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| 关 键 词： | time-of-flight detector offline calibration time resolution |
| 收稿时间： | 2010-04-22 |
| 修稿时间： | 2010-05-20 |
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