The hadronic interaction model SIBYLL 2.3c and Feynman scaling
The hadronic interaction model SIBYLL 2.3c and Feynman scaling
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强子相互作用模型 SIBYLL 2.3c 和 Feynman 标度
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
T. Stanev
中科院分区：
文献类型：
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作者：
F. Riehn;H. Dembinski;R. Engel;A. Fedynitch;T. Gaisser;T. Stanev
蒙特卡洛模型 Sibyll 旨在高效模拟强子多粒子产生，直至解释宇宙射线测量所需的最高能量。 15 年多以来，Sibyll 2.1 版本一直是风淋室模拟的标准模型之一。受大型强子对撞机和固定目标实验数据以及对强子相互作用现象学更好理解的启发，我们开发了该模型的改进版本，即 2.3 版，已于 2016 年发布。在本次贡献中，我们提出了该模型的修订版，称为 Sibyll 2.3c，通过调整粒子产生光谱以匹配破碎区域中费曼标度的期望，进一步改进了该模型。在简要介绍了 Sibyll 2.3 和 2.3c 相对于 Sibyll 2.1 所做的更改后，介绍了模型当前对流星雨最大深度、地面 μ 子数量以及大面积空气流星雨中 μ 子能谱的预测。
The Monte Carlo model Sibyll has been designed for efficient simulation of hadronic multiparticle production up to the highest energies as needed for interpreting cosmic ray measurements. For more than 15 years, version 2.1 of Sibyll has been one of the standard models for air shower simulation. Motivated by data of LHC and fixed-target experiments and a better understanding of the phenomenology of hadronic interactions, we have developed an improved version of this model, version 2.3, which has been released in 2016. In this contribution we present a revised version of this model, called Sibyll 2.3c, that is further improved by adjusting particle production spectra to match the expectation of Feynman scaling in the fragmentation region. After a brief introduction to the changes implemented in Sibyll 2.3 and 2.3c with respect to Sibyll 2.1, the current predictions of the model for the depth of shower maximum, the number of muons at ground, and the energy spectrum of muons in extensive air showers are presented.