论文标题
利用未来的银河超新星探测中微子磁矩
Exploiting a future galactic supernova to probe neutrino magnetic moments
论文作者
论文摘要
核心溢出的超新星（SN）提供了一个出色的天体物理实验室，以测试非零中微子磁矩。特别是，中微子在弹跳后几十毫秒持续的中子爆发阶段由电子中微子主导，可以为过渡磁矩提供出色的发现潜力。在即将进行的中微子实验中，我们通过考虑到与环境磁场的相互作用引起的SN核中微子的旋转转化，从而模拟了即将进行的中微子实验中的中微子光谱。我们发现，这些实验可以探索银河系SN的中微子过渡磁矩，这是比当前的陆地和天体物理极限要好几个数量级的顺序。此外，我们还讨论了这种实现如何阐明三种重要的中微子特性：（a）狄拉克/主要的性质，（b）中微子质量有序，以及（c）中微子质量生成机制。
A core-collapse supernova (SN) offers an excellent astrophysical laboratory to test non-zero neutrino magnetic moments. In particular, the neutronization burst phase, which lasts for few tens of milliseconds post-bounce, is dominated by electron neutrinos and can offer exceptional discovery potential for transition magnetic moments. We simulate the neutrino spectra from the burst phase in forthcoming neutrino experiments like the Deep Underground Neutrino Experiment (DUNE), and the Hyper-Kamiokande (HK), by taking into account spin-flavour conversions of SN neutrinos, caused by interactions with ambient magnetic fields. We find that the neutrino transition magnetic moments which can be explored by these experiments for a galactic SN are an order to several orders of magnitude better than the current terrestrial and astrophysical limits. Additionally, we also discuss how this realization might shed light on three important neutrino properties: (a) the Dirac/Majorana nature, (b) the neutrino mass ordering, and (c) the neutrino mass-generation mechanism.
