Three dimensional parametrization of electromagnetic shower in Alpha Magnetic Spectrometer Ⅱ ECAL

TAO Jun-Quan; YANG Min; CHEN Guo-Ming; LI Zu-Hao; LI Xin-Qiao; TANG Zhi-Cheng; ZHANG Zhen; WANG Jian; L&Uuml; Yu-Sheng; CHEN He-Sheng; CHEN Gang

doi:10.1088/1674-1137/32/3/006

Chinese Physics C> 2008, Vol. 32> Issue(3) : 191-195 DOI: 10.1088/1674-1137/32/3/006

Three dimensional parametrization of electromagnetic shower in Alpha Magnetic Spectrometer Ⅱ ECAL

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Abstract：
We develop an empirical formula to parameterize the 3-dimension
(3D) distribution of electromagnetic showers in the Alpha Magnetic
Spectrometer Ⅱ electromagnetic calorimeter(ECAL). The formula was
verified by ECAL test beam data in 2002 and found to perform well.
The distribution of electron showers in the ECAL are well
described by the formula, which has parameters that allow one to
determine the 3D shape of electromagnetic showers in the ECAL. We
use this formula to correct for lateral energy leakage and dead
channels in the ECAL; good results are obtained.

References

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TAO Jun-Quan, YANG Min, CHEN Guo-Ming, LI Zu-Hao, LI Xin-Qiao, TANG Zhi-Cheng, ZHANG Zhen, WANG Jian, LÜ Yu-Sheng, CHEN He-Sheng and CHEN Gang. Three dimensional parametrization of electromagnetic shower in Alpha Magnetic Spectrometer Ⅱ ECAL[J]. Chinese Physics C, 2008, 32(3): 191-195. doi: 10.1088/1674-1137/32/3/006

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Received: 2007-05-24
Revised: 2007-07-24

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