Lateral distribution of EAS muons measured for the primary cosmic ray energy around 100 TeV
Lateral distribution of EAS muons measured for the primary cosmic ray energy around 100 TeV
复制标题
针对 100 TeV 左右的初级宇宙射线能量测量的 EAS μ 子横向分布
DOI：
10.1088/1674-1137/43/7/075002
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发表时间：
2019
影响因子：
3.6
通讯作者：
Cai Hui
中科院分区：
文献类型：
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作者：
Feng You-Liang;Zhang Yi;Chen Tian-Lu;Guo Yi-Qing;Hu Hong-Bo;Liu Cheng;Xin Guang-Guang;Yao Yu-Hua;Wang Zhen;Danzengluobu;Gao Qi;Liu Mao-Yuan;Zhao Shi-Ping;Qiao Bing-Qiang;Guo Ying-Ying;Cai Hui
广延空气簇射（EAS）中的μ子分量在天体粒子物理中具有重要意义。它携带有关初级宇宙线（CR）粒子的性质的信息，例如它们的质量，电磁和强子性质。它为描述EAS实验中宇宙线级联簇射发展所必需的强子相互作用模型提供了一个灵敏的检验。羊八井混合阵列（YBJ-HA）实验自2016年底以来一直在运行。地面探测器用于测量簇射事件的初级能量、角方向和核心位置，而地下μ子探测器用于测量不同位置的μ子密度。利用YBJ-HA实验获得的数据，首次测量了100 TeV区域初级宇宙线能量的μ子横向分布。通过MC模拟来评估穿通效应。
The muonic component of the extensive air showers (EAS) is of great importance for the astroparticle physics. It carries the information about the properties of primary cosmic ray (CR) particles, such as their mass, and electromagnetic and hadronic nature. It provides a sensitive test for the hadronic interaction models, which are inevitable for describing the cascade shower development of cosmic rays in EAS experiments. The YangBaJing Hybrid Array (YBJ-HA) experiment has been in operation since the end of 2016. Surface detectors are used for the measurements of primary energy, angular direction and core position of a shower event, while underground muon detectors are used for measuring the density of muons at various locations. Using the data obtained by the YBJ-HA experiment, this work reports the first measurement of the lateral muon distribution for the primary cosmic ray energy in the 100 TeV region. The punch-through effect is evaluated via MC simulation.