论文标题
在E0 = 1-100 PEV处原代宇宙辐射的质量组成中光核的比例
The fraction of light nuclei in the mass composition of primary cosmic radiation at E0=1-100 PeV
论文作者
论文摘要
EA核心记录了对主要宇宙辐射质量组成敏感的广泛空气阵雨的特征。这些特征包括“光晕”现象的参数。研究表明，XREC中记录的大部分事件是由质子和HE核产生的，该事件允许估计PCR中光核的比例。在XREC PAMIR实验中获得了所分析的事件，并在距离EAS轴约10 cm的距离上研究了这些事件的性质，分辨率约为30 micro M。通过Halo方法对EAS核中事件的参数进行了研究，允许分析PCR在E0 = 10 PEV处的质量组成并评估PCR中光核的比例，这仅略微取决于通过大气中的EAS繁殖模型。从对Pamir XREC获得的光环和多中心光环的伽马射线家族的分析中，发现PCR的P+HE组件的比例约为40％。
The characteristics of extensive air showers that are sensitive to the mass composition of primary cosmic radiation are recorded in the EAS core. These characteristics include the parameters of the phenomenon of "halo". Studies have shown that the bulk of the events recorded in XRECs are produced by protons and He nuclei, which allows the estimation of the fraction of light nuclei in PCR. The events under analysis were obtained in the XREC PAMIR experiment, and the properties of these events were studied at distances extending up to about 10 cm from the EAS axis with a resolution of approximately 30 micro m. The investigation of the parameters of events in EAS cores by the halo method permitted analyzing the mass composition of PCR at E0=10 PeV and assessing the fraction of light nuclei in PCR, which depend only slightly on the model of EAS propagation through the atmosphere. From an analysis of gamma-ray families featuring a halo and multicenter halos obtained in the PAMIR XREC, it was found that the fraction of the p+He component of PCR was about 40%.
