Muon production in extended air shower simulations.
Muon production in extended air shower simulations.
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DOI：
10.1103/physrevlett.101.171101
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发表时间：
2006-11
影响因子：
8.6
通讯作者：
T. Pierog;K. Werner
中科院分区：
文献类型：
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作者：
T. Pierog;K. Werner
虽然空气簇射模拟是解释宇宙射线数据的非常有价值的工具，但有一个长期存在的问题：很难同时容纳空气簇射的纵向发展和地面测量的μ子数量。使用一个新的强子相互作用模型（EPOS）在空气簇射模拟产生更多的μ子，从HiRes-MIA实验的结果一致。我们发现，这主要是由于更好地描述了（反）重子产生强子相互作用。这是迄今为止被忽视的空气簇射物理学的一个方面。
Whereas air shower simulations are very valuable tools for interpreting cosmic ray data, there is a long-standing problem: it is difficult to accommodate at the same time the longitudinal development of air showers and the number of muons measured on the ground. Using a new hadronic interaction model (EPOS) in air shower simulations produces much more muons, in agreement with results from the HiRes-MIA experiment. We find that this is mainly due to a better description of (anti) baryon production in hadronic interactions. This is an aspect of air shower physics which has been neglected so far.