天体物理中微子的味成分和能谱
Flavor Composition and Energy Spectrum of Astrophysical Neutrinos
摘要：
测量来自天体物理源的中微子流的味成分，不仅可以用来研究它们的发射机制，而且可以用来研究中微子的基本性质。然而，调和这两个目标是有问题的，因为需要足够准确地了解中微子通量的来源，以提取有关中微子传播的物理信息。在这项工作中，我们批判性地讨论了不同类型的天体物理来源的风味成分和能谱的期望，并评论了与我们对其结构的有限知识有关的理论不确定性。
英文摘要：
The measurement of the flavor composition of the neutrino fluxes from astrophysical sources has been proposed as a method to study not only the nature of their emission mechanisms, but also the neutrino fundamental properties. It is however problematic to reconcile these two goals, since a sufficiently accurate understanding of the neutrino fluxes at the source is needed to extract information about the physics of neutrino propagation. In this work we discuss critically the expectations for the flavor composition and energy spectrum from different types of astrophysical sources, and comment on the theoretical uncertainties connected to our limited knowledge of their structure.
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