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ZHOU Jing, MENG Qiu-ying, LI Xiao-mei, ZHOU Shu-hua. ALICE/PHOS Photon Discrimination Simulation[J]. Nuclear Physics Review, 2004, 21(1): 12-16. DOI: 10.11804/NuclPhysRev.21.01.012
Citation: ZHOU Jing, MENG Qiu-ying, LI Xiao-mei, ZHOU Shu-hua. ALICE/PHOS Photon Discrimination Simulation[J]. Nuclear Physics Review, 2004, 21(1): 12-16. DOI: 10.11804/NuclPhysRev.21.01.012
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ALICE/PHOS Photon Discrimination Simulation

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  • The photon discrimination power of the ALICE photon spectrometer is simulated for incident particles n， p，π+， K+and γ with random energy distribution in the range from 0.5 to 100 GeV. The pricipale component analysis method is used to reduce the number of parameters in the shower shape analysis， and the results are compared with that from the seven parameter topology analysis.The efficiency dependence of purity for the photon discrimination is obtained for the deposited energy range 0.5—10， 10—20， 20—50 and 50—100 GeV.
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