An explanation of the muon puzzle of ultrahigh-energy cosmic rays and the role of the Forward Physics Facility for model improvement
An explanation of the muon puzzle of ultrahigh-energy cosmic rays and the role of the Forward Physics Facility for model improvement
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DOI：
10.1016/j.jheap.2022.03.004
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发表时间：
2022-02
影响因子：
3.8
通讯作者：
L. Anchordoqui;C. Canal;F. Kling;S. Sciutto;J. F. Soriano
中科院分区：
文献类型：
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作者：
L. Anchordoqui;C. Canal;F. Kling;S. Sciutto;J. F. Soriano
我们研究了与超高能宇宙线(UHECR)数据相比，在空气簇射模拟中观察到的µ子亏损。基于ALICE合作报告的高能强子碰撞中奇异性产生的增强，伴随的π↔K交换被认为是通过其对簇射发展的相应影响来解决Muon反常的关键。我们用π↔K交换概率F-S构造了一个玩具模型，用能容纳超高电子顺磁共振数据的伪快度给出了F-S的一个参数表示。展望未来，我们将利用大型强子对撞机中微子探测器收集的大量数据，如FASERν和前向物理设备的实验，探索改进模型的潜在策略。我们计算了F-S的相应灵敏度，并表明这些实验将能够探测到模型相空间。
We investigate the observed muon deficit in air shower simulations when compared to ultrahigh-energy cosmic ray (UHECR) data. Based upon the observed enhancement of strangeness production in high-energy hadronic collisions reported by the ALICE Collaboration, the concomitant π↔ K swap is considered as the keystone to resolve the muon anomaly through its corresponding impact on the shower development. We construct a toy model in terms of the π↔ K swapping probability F s. We present a parametrization of F s in terms of the pseudorapidity that can accommodate the UHECR data. Looking to the future, we explore potential strategies for model improvement using the massive amounts of data to be collected by LHC neutrino detectors, such as FASER ν and experiments at the Forward Physics Facility. We calculate the corresponding sensitivity to F s and show that these experiments will be able to probe the model phase space.