| 观测能量ΣE_γ≥100TeV_γ族事例衰减特征的研究 |
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| 引用本文： | 张鸣,和煜东,木钧,周文德,和仁道,丁林垲,朱清棋,荆贵茹,经才骝. 观测能量ΣE_γ≥100TeV_γ族事例衰减特征的研究[J]. 云南大学学报(自然科学版), 1989, 0(2) |
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| 作者姓名： | 张鸣 和煜东 木钧 周文德 和仁道 丁林垲 朱清棋 荆贵茹 经才骝 |
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| 作者单位： | 云南大学物理研究室(张鸣，和煜东，木钧，周文德，和仁道)，中国科学院高能物理研究所(丁林垲，朱清棋，荆贵茹)，中国科学院高能物理研究所(经才骝) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 分析了观测能量sum (E)≥100TeV的γ族的衰减特征.用蒙特卡洛模拟计算得到的垂向流强,3个不同大气浓度的γ族能谱,γ族在大气中的衰减长度以及其他可测量在实验误差范围内均与相应的实验值相符。因此,模拟中所用的M-D-ND和M-SD-SH能大致正确地描述γ族事例的衰减特征。
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| 关 键 词： | 乳胶室 电磁级联簇射 次级粒子 初级宇宙线 天顶角 蒙特卡洛模拟 强子 |
Study of Attenuation Properties of Gamma-Family Events with Observed Energies Larger than lOOTeV |
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| Zhang Ming He Yudong Mu Jun Zhou Wende He Rendao. Study of Attenuation Properties of Gamma-Family Events with Observed Energies Larger than lOOTeV[J]. Journal of Yunnan University(Natural Sciences), 1989, 0(2) |
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| Authors: | Zhang Ming He Yudong Mu Jun Zhou Wende He Rendao |
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| Abstract: | The attenuation properties of gamma-families with observed energies larger than 100 TeV are investigated. The Monte-Carlo simulation calculations yield the vertical fluxes, energy spectra of gamma-families at three different atmospheric depths, the attenuation lengths in air of gamma-families and other measurable quantities, which are wholly consistent with corresponding experimental data within the experimental errors. Therefore, the two models, M-D-ND and M-SD-SH can describe the attenuation characteristics of gamma-families approximately. Finally, several parameters in our simulation models relating to the attenuation behaviours of gamma-families are discussed. |
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| Keywords: | emulsion chambers electromagnetic cascade showers primary cosmic rays zenith angle Monte-Carlo simulation hadrons secondary cosmic rays |
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