我们能测量天空中的中微子质量等级吗？
Can we measure the neutrino mass hierarchy in the sky?
摘要：
宇宙学探测器正在稳步地减少总中微子质量窗口，导致对中微子质量简并度的限制成为最重要的结果。在这项工作中，我们探讨了宇宙学探测器的发现潜力，以约束中微子的层次结构，并指出一些微妙之处，可能产生虚假的检测索赔。这对下一代双β衰变实验具有重要意义，这将能够在Majorana中微子简并或倒置的情况下获得正信号。我们发现，几乎覆盖整个天空的宇宙学实验原则上可以区分中微子等级，通过精确测量大尺度结构和弱引力透镜的物质功率谱形状，为一种情况提供“实质性”证据。
英文摘要：
Cosmological probes are steadily reducing the total neutrino mass window, resulting in constraints on the neutrino-mass degeneracy as the most significant outcome. In this work we explore the discovery potential of cosmological probes to constrain the neutrino hierarchy, and point out some subtleties that could yield spurious claims of detection. This has an important implication for next generation of double beta decay experiments, that will be able to achieve a positive signal in the case of degenerate or inverted hierarchy of Majorana neutrinos. We find that cosmological experiments that nearly cover the whole sky could in principle distinguish the neutrino hierarchy by yielding 'substantial' evidence for one scenario over the another, via precise measurements of the shape of the matter power spectrum from large scale structure and weak gravitational lensing.
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