论文标题
沙丘实验的绝对$ν$质量测量
An absolute $ν$ mass measurement with the DUNE experiment
论文作者
论文摘要
超新星中微子信号的飞行时间延迟提供了独特的工具，可以在绝对中微子质量上设置独立于模型的约束。在第一个发射阶段存在尖锐的时间结构，即电子中微子风味时间分布中所谓的中子爆发使该通道成为非常强大的通道。大型液体氩地下探测器将提供对电子中微子通量的时间依赖性的精确测量。我们在这里得出了一个新的$ν$质量敏感性，可以从未来的沙丘探测器中从我们银河邻里的未来超新星倒塌中实现，在有利的场景下发现了sub-ev。这些值与实验室直接中微子质量搜索的预期竞争性竞争。
Time of flight delay in the supernova neutrino signal offers a unique tool to set model-independent constraints on the absolute neutrino mass. The presence of a sharp time structure during a first emission phase, the so-called neutronization burst in the electron neutrino flavor time distribution, makes this channel a very powerful one. Large liquid argon underground detectors will provide precision measurements of the time dependence of the electron neutrino fluxes. We derive here a new $ν$ mass sensitivity attainable at the future DUNE far detector from a future supernova collapse in our galactic neighborhood, finding a sub-eV reach under favorable scenarios. These values are competitive with those expected for laboratory direct neutrino mass searches.
