| BESⅢ barrel time-of-flight (TOF) calibration using cosmic ray data |
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| 作者单位： | YAN Jie,FENG Chang-Qing,GUO Jian-Hua,LIU Shu-Bin,LI Cheng,SHAO Ming,SUN Yong-Jie,XU Min,AN Qi,ZHAO Chuan,ZHAO Lei,CHEN Hong-Fang(Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China);DENG Zi-Yan,FU Cheng-Dong,HE Miao,HENG Yue-Kun,HUANG Bin,JIA Lu-Kui,JI Xiao-Bin,SUN Sheng-Sen,LIU Chun-Xiu,LIU Huai-Min,LIU Shu-Dong,LIU Yong,LUO Tao,MA Qiu-Mei,MA Xiang,MAO Ze-Pu,MO Xiao-Hu,QIU Jin-Fa,SUN Xiao-Dong,SUN Yong-Zhao,SUN Zhi-Jia,TIAN Hao-Lai,WANG Ji-Ke,WEN Shuo-Pin,HE Kang-Lin,WU Jin-Jie,WU Ling-Hui,WU Zhi,XIE Yu-Guang,YAN Liang,YANG Gui-An,YUAN Ye,ZHANG Chang-Chun,ZHANG Jian-Yong,ZHANG Yao,ZHU Yong-Sheng,BIAN Jian-Ming,CAO Guo-Fu,CAO Xue-Xiang(Institute of High Energy Physics,CAS,Beijing 100049,China);LI Wei-Dong,LIANG Yu-Tie(Peking University,Beijing 100871,China);ZOU Jia-Heng(Shandong University,Jinan 250100,China) |
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| 摘 要： | The principle of the method for the BESⅢ TOF calibration using cosmic ray data without magnetic field are reported in this paper. After applying calibration constants, the single-end readout time resolution could reach about 150 ps, and the time resolution for one layer is achieved to be about 110 ps. The paper also described the extraction scheme for the event start time of cosmic events.
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