论文标题
工作组报告了八个空气淋浴实验的灵恩密度测量的组合分析
Working Group Report on the Combined Analysis of Muon Density Measurements from Eight Air Shower Experiments
论文作者
论文摘要
我们介绍了通过八个空气淋浴实验进行的近期的MUON密度测量值的荟萃分析，这些测量涵盖了大量空气淋浴中的MUON拼图，涵盖了从PEV到EEV数十亿的淋浴能。一些实验分析报道了广泛的空气淋浴中记录的和模拟的灵恩密度之间的偏差，而另一些实验分析没有报告差异。基于模拟质子和铁启动空气淋浴的相对差异，使用通用参考量表进行了实验之间的比较。我们已经基于宇宙射线的各向同性通量在实验之间应用了能量尺度的交叉校准。大多数实验数据在10 PEV上方，显示了有关模拟的空气淋浴的过量，包括使用最近的LHC后高能量相互作用模型进行的。差异随淋浴能而增加，斜率8 sigma远离EPOS-LHC和QGSJET-II.04的预测。将在不同实验中以不同的天顶角度和MUON的能量阈值进行测量的效果。
We present a meta-analysis of recent muon density measurements made by eight air shower experiments which cover shower energies ranging from PeV to tens of EeV regarding the muon puzzle in extensive air showers. Some experimental analyses reported deviations between recorded and simulated muon densities in extensive air showers, and others reported no discrepancies. Comparisons between experiments were made using a universal reference scale based on the relative difference to simulated proton and iron initiated air showers. We have applied a cross-calibration of energy scales between experiments based on the isotropic flux of cosmic rays as a reference. Above 10 PeV, most experimental data show a muon excess with respect to simulated air showers, including those performed with the recent post-LHC high-energy interaction models. The discrepancy increases with the shower energy with a slope 8 sigma away from the predictions by EPOS-LHC and QGSJet-II.04. The effect of measurements being made at different zenith angles and energy threshold of muons across different experiments will be addressed.
