发表机构
University of Iowa（爱荷华大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出一种解析计算缪子传播距离的方法，用于估算中微子望远镜的有效面积，与蒙特卡洛模拟及多个探测器数据高度吻合，并支持点源灵敏度分析、能量重建和探测器间一致性检验。
AI 中文摘要
中微子望远镜通过荷电流相互作用产生的缪子来观测中微子。这些缪子大多在探测器外数公里处产生，它们在传播过程中损失多少能量是随机的。我们证明，可以解析地计算缪子在降至探测阈值以下之前传播的距离，同时描述其能量损失的统计特性。我们的结果与蒙特卡洛传播的符合度在3%以内，并且每个探测器仅用两个参数，即可与IceCube、KM3NeT/ARCA和P-ONE公布的有效面积匹配至约1%的精度。随后，我们展示了该模型如何用于点源灵敏度分析、能量重建以及探测器间的一致性检验。该计算将缪子输运物理与探测器响应分离开来，因此可以快速对新探测器或新损失模型进行基准测试。
英文摘要
Neutrino telescopes observe neutrinos through the muons produced by charged-current interactions. Most of those muons are born kilometers outside the detector, and how much energy they lose on the way is stochastic. We show that we can compute analytically the distance a muon travels before it falls below the detection threshold, while describing the statistical properties of its losses. Our result reproduces Monte Carlo propagation to within $3\%$, and with two parameters per detector it matches the effective areas published by IceCube, KM3NeT/ARCA, and P-ONE to about $1\%$. We then show how this model can be used in point-source sensitivities, energy reconstruction, and consistency checks between detectors. The calculation disentangles muon-transport physics from a detector's response, so a new detector or loss model can be quickly benchmarked.
Comments20 pages total: 10 pages main body, 7 pages appendix, 14 figures. Comments welcome!
