IDENTIFICATION OF PRIMARY GAMMA RAYS AND PROTONS IN YBJ-ARGO EXPERIMENT

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2000, Vol. 17 ›› Issue (3): 280-285.

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IDENTIFICATION OF PRIMARY GAMMA RAYS AND PROTONS IN YBJ-ARGO EXPERIMENT

KONG Fan-min¹, FENG Cun-feng¹, ZHANG Xue-yao¹, FU Yu¹, ZHANG Nai-jian¹, HE Mao¹, WANG Cheng-rui¹, TAN You-heng²

1. High Energy Physics Group, Shandong University, 250100, P R China;
2. Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100079, P R China

Received:1998-10-12 Revised:1999-05-26 Online:2000-05-25 Published:2000-05-25

Abstract

Abstract: The differences of space distributions and time profiles between the γ-ray and proton induced showers in YBJ-ARGO experiment are studied using Monte Carlo simulation data.An artificial neural algorithm is used to identify the primary γ-ray and proton induced showers.It is shown that the separation of γ-rays and protons can be achieved with a good efficiency in the energy range of 0.1~10 TeV.

Key words: Monte Carlo simulation, artificial neural networks, γ/proton separation, quality factor

CLC Number:

O572.12

KONG Fan-min, FENG Cun-feng, ZHANG Xue-yao, FU Yu, ZHANG Nai-jian, HE Mao, WANG Cheng-rui, TAN You-heng. IDENTIFICATION OF PRIMARY GAMMA RAYS AND PROTONS IN YBJ-ARGO EXPERIMENT[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2000, 17(3): 280-285.

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IDENTIFICATION OF PRIMARY GAMMA RAYS AND PROTONS IN YBJ-ARGO EXPERIMENT

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