Chinese Physics C > 2003, Vol. 27 > Issue(10): 846-851

Study of BES II Backgrounds

Institute of High Energy Physics,CAS,Beijing 100039,China

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Abstract：
The BES II backgrounds experiment and simulation are described. In the experiment, we have studied the characteristics of the beam-related backgrounds. In the simulation, we simulate carefully the beam-gas backgrounds with the mature tools-TURTLE and Geant3. Finally, we compare the results of the experiment and those of the simulation, they agree with each other within a factor of 4, which is acceptable in background simulation. This comparison proves the simulation tools are reliable, which makes it possible for us to simulate the beam-related backgrounds of the future BES-BESIII.

References

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Le Duff J. Single and Multiple Touschek Effects. In: CERN 95–06, 1995, 573–5862 Carey D C, Brown K L, Iselin F C. Decay TURTLE (Trace Unlimited Rays Through Lumped Elements). SLAC–246, 1980． A modified version taking into account the beam–gas bremsstrahlung and Coulomb scattering was provided by Kozanecki W3 GEANT Detector Description Tool, Version 3.21, CERN Program Library. W5103, CERN (1994)4 BAI Jing–Zhi et al. Nucl. Instr. Meth. in Phys. Res., 1994, A344:3195 ZHENG Jian–Ping et al. High Energy Phys. and Nucl. Phys., 2001, 25(5) :423–428 (in Chinese)(郑建平等.高能物理与核物理,2001,25(5) :423–428)

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JIN Da-Peng, YANG Sheng-Dong, ZHAO Di-Xin, GUO Ya-Nan, ZHOU Neng-Feng, WANG Yi-Fang, LIU Zhen-An, YU Zhong-Qiang and XU Hao. Study of BES II Backgrounds[J]. Chinese Physics C, 2003, 27(10): 846-851.

JIN Da-Peng, YANG Sheng-Dong, ZHAO Di-Xin, GUO Ya-Nan, ZHOU Neng-Feng, WANG Yi-Fang, LIU Zhen-An, YU Zhong-Qiang and XU Hao. Study of BES II Backgrounds[J]. Chinese Physics C, 2003, 27(10): 846-851. shu

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Received: 2003-03-24
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of BES II Backgrounds

Corresponding author:JIN Da-Peng,

Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date:2003-03-24
Accepted Date:1900-01-01
Available Online:2003-10-05

Abstract:The BES II backgrounds experiment and simulation are described. In the experiment, we have studied the characteristics of the beam-related backgrounds. In the simulation, we simulate carefully the beam-gas backgrounds with the mature tools-TURTLE and Geant3. Finally, we compare the results of the experiment and those of the simulation, they agree with each other within a factor of 4, which is acceptable in background simulation. This comparison proves the simulation tools are reliable, which makes it possible for us to simulate the beam-related backgrounds of the future BES-BESIII.