A study of hadronic shower development in the ECAL of the alpha magnetic spectrometer Ⅱ  

作　　者：藏京京 陈国明 卞建国 范嘉伟 李祖豪 梁松 孟祥伟 陶军全 唐志成 王健 王健2 汪先友 王征 徐明 许伟伟 肖虹 严琪 杨民 

机构地区：[1]Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China [2]Graduate University of Chinese Academy of Sciences, Beijing 100049, China [3]Theoretical Physics Institute, Chongqing University, Chongqing 400044, China

出　　处：《Chinese Physics C》2011年第8期763-768,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10435070,10721140381,10099630);China Ministry of Science and Technology (2007CB16101);Chinese Academy of Sciences (KJCX2-N17,1730911111)

摘　　要：In this paper, we studied the development of hadronic shower in an electromagnetic calorimeter of Alpha Magnetic Spectrometer Ⅱ. Two parametrized empirical formulae were proposed to describe the hadronic shower shape in calorimeter. Using 100 GeV proton beam incident on the center of the ECAL, detailed plots of lateral and longitudinal hadronic shower behavior were given and we found the formulae can describe the development of the hadronic shower with the test beam data. The possible application of the parametrized formulae including e±-π± discrimination and tau jet reconstruction was discussed.In this paper, we studied the development of hadronic shower in an electromagnetic calorimeter of Alpha Magnetic Spectrometer Ⅱ. Two parametrized empirical formulae were proposed to describe the hadronic shower shape in calorimeter. Using 100 GeV proton beam incident on the center of the ECAL, detailed plots of lateral and longitudinal hadronic shower behavior were given and we found the formulae can describe the development of the hadronic shower with the test beam data. The possible application of the parametrized formulae including e±-π± discrimination and tau jet reconstruction was discussed.

关 键 词：hadronic shower ECAL parametrisation e±-π± discrimination 

分 类 号：O572.212[理学—粒子物理与原子核物理]