计算物理 ›› 2000, Vol. 17 ›› Issue (3): 280-285.

• 论文 • 上一篇    下一篇

羊八井ARGO实验中原初γ和质子的区分

孔繁敏1, 冯存峰1, 张学尧1, 傅宇1, 张乃健1, 何瑁1, 王承瑞1, 谭有恒2   

  1. 1. 山东大学高能物理研究室, 山东 济南 250100;
    2. 中国科学院高能物理研究所, 北京 100039
  • 收稿日期:1998-10-12 修回日期:1999-05-26 出版日期:2000-05-25 发布日期:2000-05-25
  • 作者简介:孔繁敏(1970~),男,山东泗水,讲师,博士,从事无线电物理,高能物理方面研究工作.
  • 基金资助:
    国家自然科学基金;高等学校博士学科专项科研基金资助课题

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. 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

摘要: 利用Monte Carlo模拟数据研究了由γ和质子引起的空气簇射中的粒子在羊八井ARGO实验中的空间分布和时间分布的不同,提出了利用人工神经网络区分原初γ和质子的方法,结果表明在100GeV~ 10TeV能区可以较好地区分γ和质子。

关键词: Monte Carlo模拟, 人工神经网络, γ和质子的区分, 品质因子

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

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