Studies on Angular Resolution of Lead-Scintillating Fiber Electro-Magnetic Calorimeter

WANG Xiao-Bin; CHEN Guo-Ming; LI Zu-Hao; CHEN Gang; YANG Ming; YANG Zhao-Yu; ZHANG Shao-He; LU Yu-Sheng; CHEN He-Sheng

Chinese Physics C> 2005, Vol. 29> Issue(11) : 1071-1076

Studies on Angular Resolution of Lead-Scintillating Fiber Electro-Magnetic Calorimeter

Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, CAS, Beijing 100049, China

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Analyzing methods on the angular resolution of lead-scintillating fiber electromagnetic calorimeter are studied. The space resolution function, which is used to calculate weights,is extracted from Monte-Carlo simulation. Better angular resolution was obtained from the beam test data of AMS ECAL in 2002 at CERN, when the space resolution function was used in the fit. Different ways to calculate the centers of gravity,to choose the layers to fit the incidence direction are also discussed.

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WANG Xiao-Bin, CHEN Guo-Ming, LI Zu-Hao, CHEN Gang, YANG Ming, YANG Zhao-Yu, ZHANG Shao-He, LU Yu-Sheng and CHEN He-Sheng. Studies on Angular Resolution of Lead-Scintillating Fiber Electro-Magnetic Calorimeter[J]. Chinese Physics C, 2005, 29(11): 1071-1076.

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Received: 2005-03-30
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

Studies on Angular Resolution of Lead-Scintillating Fiber Electro-Magnetic Calorimeter

Corresponding author: WANG Xiao-Bin,

Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, CAS, Beijing 100049, China

Received Date: 2005-03-30

Accepted Date: 1900-01-01

Available Online: 2005-11-05

Abstract: Analyzing methods on the angular resolution of lead-scintillating fiber electromagnetic calorimeter are studied. The space resolution function, which is used to calculate weights,is extracted from Monte-Carlo simulation. Better angular resolution was obtained from the beam test data of AMS ECAL in 2002 at CERN, when the space resolution function was used in the fit. Different ways to calculate the centers of gravity,to choose the layers to fit the incidence direction are also discussed.

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