Chinese Physics C > 2002, Vol. 26 > Issue(8): 861-869

Some Improvements of BESⅡ TOF Monte Carlo Simulation

Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China2 Institute of High Energy Physics, CAS, Beijing 100039, China

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Abstract：
BESⅡ detector has been upgraded from 1995, the TOF time resolution is about 180ps for Bhabha events, a big improvement compared with 330ps of BESⅠ. With the upgrade of the detector, the software including calibration, reconstruction and Monte Carlo (M.C.) simulation needs corresponding improvement, especially for M.C. simulation. Using 50M J/ψ data taken in the last two years at BESⅡ, we studied the TOF resolution carefully, and made some improvements for TOF MC simulation. After such an improvement, we compared the TOF resolutions between real data and M.C. data and found they agree with each other.

References

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PENG Hai-Ping, SHEN Xiao-Yan, YE Shu-Wei, ZHANG Chang-Chun, LV Jun-Guang, LIU Huai-Min, ZHANG Zi-Ping and CHEN Hong-Fang. Some Improvements of BESⅡ TOF Monte Carlo Simulation[J]. Chinese Physics C, 2002, 26(8): 861-869.

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Received: 2001-12-14
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

Some Improvements of BESⅡ TOF Monte Carlo Simulation

Corresponding author:PENG Hai-Ping,

Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China2 Institute of High Energy Physics, CAS, Beijing 100039, China

Received Date:2001-12-14

Accepted Date:1900-01-01

Available Online:2002-08-05

Abstract:BESⅡ detector has been upgraded from 1995, the TOF time resolution is about 180ps for Bhabha events, a big improvement compared with 330ps of BESⅠ. With the upgrade of the detector, the software including calibration, reconstruction and Monte Carlo (M.C.) simulation needs corresponding improvement, especially for M.C. simulation. Using 50M J/ψ data taken in the last two years at BESⅡ, we studied the TOF resolution carefully, and made some improvements for TOF MC simulation. After such an improvement, we compared the TOF resolutions between real data and M.C. data and found they agree with each other.

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Some Improvements of BESⅡ TOF Monte Carlo Simulation

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通讯作者:陈斌, bchen63@163.com

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