Constraining pion interactions at very high energies by cosmic ray data
Constraining pion interactions at very high energies by cosmic ray data
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通过宇宙射线数据约束极高能量下的π介子相互作用
DOI：
10.1103/physrevd.93.051501
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发表时间：
2016
影响因子：
5
通讯作者：
M. Bleicher
中科院分区：
文献类型：
--
作者：
S. Ostapchenko;M. Bleicher
我们证明，目前模型预测宇宙射线引起的广泛空气簇射的平均最大深度的不确定性很大一部分与极高能量的π介子-空气碰撞有关。我们的分析表明，空气簇射中μ子产生剖面最大值的位置对这种相互作用的特性非常敏感。因此，通过宇宙射线实验测量最大μ子产生深度提供了一个独特的机会来限制在非常高的能量下处理π介子-空气相互作用，从而减少与模型相关的流星雨最大深度的不确定性。
We demonstrate that a substantial part of the present uncertainties in model predictions for the average maximum depth of cosmic ray-induced extensive air showers is related to very high energy pion-air collisions. Our analysis shows that the position of the maximum of the muon production profile in air showers is strongly sensitive to the properties of such interactions. Therefore, the measurements of the maximal muon production depth by cosmic ray experiments provide a unique opportunity to constrain the treatment of pion-air interactions at very high energies and to reduce thereby model-related uncertainties for the shower maximum depth.