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Complete predictions for high-energy neutrino propagation in matter
Journal of Cosmology and Astroparticle Physics ( IF 6.4 ) Pub Date : 2020-09-14 , DOI: 10.1088/1475-7516/2020/09/025
Alfonso Garcia 1 , Rhorry Gauld 1 , Aart Heijboer 1 , Juan Rojo 1, 2
Affiliation  

We present complete predictions for the interactions of energetic neutrinos with matter as they propagate through Earth towards large-volume detectors. Our results are based on state-of-the-art calculations for the high-energy neutrino-matter interaction cross-sections, which we have implemented in the HEDIS module of GENIE. In addition to the dominant interaction process, deep inelastic scattering off quarks and gluons, we include the relevant subdominant channels: (in)elastic scattering off the photon field of nucleons, coherent scattering off the photon field of nuclei, as well as the scattering on atomic electrons via the Glashow resonance. Our predictions for the neutrino attenuation rates, based on this complete and reliable calculation, are provided by a new software package, NuPropEarth. We quantify the dependence of our results on the cross-section model, including nuclear corrections, the incidence angle, and the spectral index, and compare them with other publicly available tools. Our results provide an important contribution to the scientific harvest of ongoing and next-generation high-energy neutrino detection experiments.

中文翻译:

对物质中高能中微子传播的完整预测

我们对高能中微子在穿过地球向大体积探测器传播时与物质的相互作用提出了完整的预测。我们的结果基于对高能中微子相互作用截面的最先进计算,我们已在 GENIE 的 HEDIS 模块中实现了该计算。除了主要的相互作用过程,夸克和胶子的深层非弹性散射之外,我们还包括相关的次主导通道:核子光子场的(内)弹性散射,核子光子场的相干散射,以及通过格拉肖共振的原子电子。我们对中微子衰减率的预测,基于这种完整可靠的计算,由一个新的软件包 NuPropEarth 提供。我们量化了我们的结果对横截面模型的依赖性,包括核校正、入射角和光谱指数,并将它们与其他公开可用的工具进行比较。我们的结果为正在进行的和下一代高能中微子检测实验的科学收获做出了重要贡献。
更新日期:2020-09-14
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