论文标题
用天体物理来源探测伪迪拉克中微子
Probing Pseudo-Dirac Neutrinos with Astrophysical Sources at IceCube
论文作者
论文摘要
Icecube中微子天文台对NGC 1068的最新观察为具有天体物理基线的中微子物理学打开了一个新窗口。在这封信中，我们提出了一种使用这些观察结果探测中微子质量的性质的新方法。特别是，我们的方法可以搜索具有质量方差异的伪dirac中微子的签名，这些差异降低到$Δm^2 \ gtrsim 10^{ - 21}〜\ text {ev}^2 $，将地面实验的范围提高了比数十亿。最后，我们讨论了中微子源星座的发现如何进一步提高灵敏度并覆盖$Δm^2 $值的范围更大。
The recent observation of NGC 1068 by the IceCube Neutrino Observatory has opened a new window to neutrino physics with astrophysical baselines. In this Letter, we propose a new method to probe the nature of neutrino masses using these observations. In particular, our method enables searching for signatures of pseudo-Dirac neutrinos with mass-squared differences that reach down to $δm^2 \gtrsim 10^{-21}~\text{eV}^2$, improving the reach of terrestrial experiments by more than a billion. Finally, we discuss how the discovery of a constellation of neutrino sources can further increase the sensitivity and cover a wider range of $δm^2$ values.
