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arXiv 1902.08124astro-ph.HEhep-ex
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空气簇射强子相互作用特性的试验和测量报告

Report on Tests and Measurements of Hadronic Interaction Properties with Air Showers

H. P. Dembinski, J. C. Arteaga-Velázquez, L. Cazon, R. Conceição, J. Gonzalez, Y. Itow, D. Ivanov, N. N. Kalmykov, I. Karpikov, S. Müller, T. Pierog, F. Riehn, … 展开作者

H. P. Dembinski, J. C. Arteaga-Velázquez, L. Cazon, R. Conceição, J. Gonzalez, Y. Itow, D. Ivanov, N. N. Kalmykov, I. Karpikov, S. Müller, T. Pierog, F. Riehn, M. Roth, T. Sako, D. Soldin, R. Takeishi, G. Thompson, S. Troitsky, I. Yashin, E. Zadeba, Y. Zhezher

摘要:

本文总结了最近关于强子与空气簇射相互作用性质的实验和测量结果。本报告特别关注μ子密度测量。有几个实验报告了在大范围的空气簇射中模拟和记录的μ介子密度之间的偏差,而其他实验则报告没有差异。我们结合了八个领先的空气淋浴实验的数据,以涵盖淋浴能量从PeV到数十EeV。数据结合使用z尺度,一个统一的参考尺度的基础上模拟空气淋浴。实验的能量标度是交叉校准的。超过10 PeV,我们发现模拟空气阵雨的六个考虑强子相互作用模型的μ子赤字。赤字随着淋浴能量的增加而增加。对于EPOS-LHC和QGSJet-II.04模型,发现斜率在8 σ处是显著的。

英文摘要:

We present a summary of recent tests and measurements of hadronic interaction properties with air showers. This report has a special focus on muon density measurements. Several experiments reported deviations between simulated and recorded muon densities in extensive air showers, while others reported no discrepancies. We combine data from eight leading air shower experiments to cover shower energies from PeV to tens of EeV. Data are combined using the z-scale, a unified reference scale based on simulated air showers. Energy-scales of experiments are cross-calibrated. Above 10 PeV, we find a muon deficit in simulated air showers for each of the six considered hadronic interaction models. The deficit is increasing with shower energy. For the models EPOS-LHC and QGSJet-II.04, the slope is found significant at 8 sigma.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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