Feasibility study to measure the muon bremsstrahlung cross section with the energy loss profile using neutrino telescopes
Feasibility study to measure the muon bremsstrahlung cross section with the energy loss profile using neutrino telescopes
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DOI：
10.1088/1742-6596/1690/1/012020
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发表时间：
2020-12
期刊：
影响因子：
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通讯作者：
J. Soedingrekso;A. Sandrock;Mirco Hünnefeld;M. Meier;W. Rhode
中科院分区：
文献类型：
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作者：
J. Soedingrekso;A. Sandrock;Mirco Hünnefeld;M. Meier;W. Rhode
μ子是像冰立方这样的中微子望远镜的主要事件签名，它们是中微子搜索的主要背景。此外，它们还用于研究扩展的空气簇射。在这两种情况下，μ子传播的随机性在数据提取步骤中起着关键作用，并且准确理解，即使是边缘情况，也是至关重要的。驱动TeV尺度μ子随机损耗的主要过程是韧致辐射。本文研究了利用中微子诱导的μ子测量随机损耗截面的可行性。模拟研究是基于μ子的传播使用蒙特-卡罗库PROPOSAL。对于不同的重建方法和分辨率，不同μ子能量的能量损失分布被用来估计测量韧致辐射截面的灵敏度。另外两个系统参数，检测效率，其规模的检测到的光的量，和光谱指数也估计分析它们的相关性估计韧致辐射归一化。模拟数据集的统计数据对应于IceCube中10年的上行μ子中微子数据。
Muons are the dominant event signature for neutrino telescopes like IceCube and they are the main background for neutrino searches. Furthermore, they are used to investigate extended air showers. In both cases, the stochasticity of the muon propagation plays a key role in the data extraction step and an accurate understanding, even of the edge cases, is crucial. The main process driving stochastic losses for TeV scale muons is bremsstrahlung. In this paper, a feasibility study is presented to measure the cross section of stochastic losses using neutrino-induced muons. The simulation study is based on the propagation of muons using the Monte-Carlo library PROPOSAL. For different reconstruction methods and resolutions, the energy loss distribution for different muon energies is used to estimate the sensitivity to measure the bremsstrahlung cross section. Two further systematic parameters, the detection efficiency, which scales the amount of detected light, and the spectral index are also estimated to analyze their correlation to the estimated bremsstrahlung normalization. The statistics of the simulated dataset correspond to 10 years of up-going muon neutrino data in IceCube.