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ZHOU Jing, LIU Zhi-yi, ZHOU Shu-hua (China Institute of Atomic Energy, P.O.Box 275-18, Beijing 102413, China). Study on Photon Identification in Photon Spectrometer[J]. Atomic Energy Science and Technology, 2005, 39(2): 124-124. DOI: 10.7538/yzk.2005.39.02.0124
Citation: ZHOU Jing, LIU Zhi-yi, ZHOU Shu-hua (China Institute of Atomic Energy, P.O.Box 275-18, Beijing 102413, China). Study on Photon Identification in Photon Spectrometer[J]. Atomic Energy Science and Technology, 2005, 39(2): 124-124. DOI: 10.7538/yzk.2005.39.02.0124
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  • The photon discrimination power of ALICE(A Large Ion Collider Experiment) photon spectrometer(PHOS) was simulated for incident particles n, n-, p, p-, K~+, π~+ and photon generated with JPCIAE for 5.5 TeV/A ~(208)Pb+~(208)Pb collisions. The principal component analysis method was used to reduce the number of parameters in the shower shape analysis. The efficiency dependence of purity for the photon discrimination was obtained for the deposited different energy range.
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