Systematic Study of Time of Flight Correction of BESⅡ

SUN Sheng-Sen; HE Kang-Lin; YANG Fan; ZHENG Zhi-Peng

Chinese Physics C> 2005, Vol. 29> Issue(2) : 162-167

Systematic Study of Time of Flight Correction of BESⅡ

Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China2 Institute of High Energy Physics,Cas,Beijing 100049,China3 Nankai University,Tianjin 300071,China

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Abstract：
Time of flight counter (tof) is one of the main subdetectors of beijing spectrometerⅡ(besⅡ)for the identification of charged particles. due to the importance of particle identification in physics analysis,the measured time offset and resolution are carefully studied in this paper. using the hadron sample of j/ψ data,the variations of time offset and resolution versus pulse amplitued Q,coordinate z and βγ value are analyzed in detail. the correction functions of time offset and resolution are constructed respectively. finally,the results are checked from the hadron sample of ψ″ data when using the correction function.

References

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SUN Sheng-Sen, HE Kang-Lin, YANG Fan and ZHENG Zhi-Peng. Systematic Study of Time of Flight Correction of BESⅡ[J]. Chinese Physics C, 2005, 29(2): 162-167.

SUN Sheng-Sen, HE Kang-Lin, YANG Fan and ZHENG Zhi-Peng. Systematic Study of Time of Flight Correction of BESⅡ[J]. Chinese Physics C, 2005, 29(2): 162-167. shu

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Received: 2004-05-11
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Systematic Study of Time of Flight Correction of BESⅡ

Corresponding author: SUN Sheng-Sen,

Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China2 Institute of High Energy Physics,Cas,Beijing 100049,China3 Nankai University,Tianjin 300071,China

Received Date: 2004-05-11

Accepted Date: 1900-01-01

Available Online: 2005-02-05

Abstract: Time of flight counter (tof) is one of the main subdetectors of beijing spectrometerⅡ(besⅡ)for the identification of charged particles. due to the importance of particle identification in physics analysis,the measured time offset and resolution are carefully studied in this paper. using the hadron sample of j/ψ data,the variations of time offset and resolution versus pulse amplitued Q,coordinate z and βγ value are analyzed in detail. the correction functions of time offset and resolution are constructed respectively. finally,the results are checked from the hadron sample of ψ″ data when using the correction function.

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Systematic Study of Time of Flight Correction of BESⅡ

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