The Monte Carlo Simulation of BESⅢ Ead cap TOF

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LI Xin, WU Chong, AN Shao-Hui, TANG Ze-Bo, CHEN Hong-Fang and LI Cheng. The Monte Carlo Simulation of BESⅢ Ead cap TOF[J]. Chinese Physics C, 2005, 29(6): 586-591.
LI Xin, WU Chong, AN Shao-Hui, TANG Ze-Bo, CHEN Hong-Fang and LI Cheng. The Monte Carlo Simulation of BESⅢ Ead cap TOF[J]. Chinese Physics C, 2005, 29(6): 586-591. shu
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Received: 2004-09-17
Revised: 1900-01-01
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The Monte Carlo Simulation of BESⅢ Ead cap TOF

    Corresponding author: LI Xin,
  • Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China

Abstract: The End-Cap TOF (ETOF) of Beijing Spectrometer (BESⅢ) consists of 2×48 pieces of trapezoidal scintillator (BC408). Its main physics goal is to realize the 2σ π/k separation at momentum up to 1GeV/c, and to obtain TOF intrinsic time resolution of 80ps.In order to study the effects of several factors on the intrinsic time resolution of ETOF, the Monte Carlo simulation of the detector is carried out by using Geant4 software package. The performance of ETOF at different conditions, such as scintillator covered materials, shapes, and particle hit positions, is simulated and discussed in discussed in detail. The result can provide a reference for the design of ETOF detecor in BESⅢ.

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