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arXiv 1709.07227hep-ph
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强子相互作用模型SIBYLL 2.3 c与Feynman标度

The hadronic interaction model SIBYLL 2.3c and Feynman scaling

Felix Riehn, Hans P. Dembinski, Ralph Engel, Anatoli Fedynitch, Thomas K. Gaisser, Todor Stanev

摘要:

蒙特卡罗模型Sibyll的设计是为了有效地模拟强子多粒子生产的最高能量,解释宇宙射线测量所需的。15年多来,Sibyll的2.1版本一直是空气簇射模拟的标准模型之一。受LHC和固定靶实验数据的启发,以及对强子相互作用现象学的更好理解,我们开发了该模型的改进版本2.3,已于2016年发布。在这篇文章中,我们提出了一个修订版本的这个模型,称为Sibyll 2.3c,这是进一步改进,通过调整粒子产生谱,以匹配预期的费曼标度在碎裂区域。在简要介绍了Sibyll 2.3和2.3c相对于Sibyll 2.1的变化后,给出了该模型对簇射最大深度、地面μ子数量和广泛空气簇射中μ子能谱的当前预测。

英文摘要:

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.

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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