论文标题
测试镀至异常
Testing the Gallium Anomaly
论文作者
论文摘要
我们通过在闪烁实验中通过$^{51} $ cr放射源产生的单能中微子捕获镀罐捕获在线检测。我们发现，掺杂葡萄干的Gadolinuim铝镀金石榴石（GAGG）是一个合适的闪光灯，含有每重量的21％的镀凝剂，质量密度和轻度产量很高。结合高效的光检测系统，这允许标记随后的锗衰减，从而可以清晰地捕获镀凝剂和弹性中微子电子散射事件。我们获得了1.5吨闪烁体和10个源运行3.4mci的运行，每个闪烁体运行量，纯度为85％和680,000个中微子电子散射事件，而后者则提供了与任何核物理学无关的精确归一化。这种配置将允许独立方式以超过$5σ$的速度测试炮异常。
We study the online detection by gallium capture of mono-energetic neutrinos produced by a $^{51}$Cr radioactive source in a scintillation experiment. We find that cerium-doped gadolinium aluminum gallium garnet (GAGG) is a suitable scintillator which contains about 21% of gallium per weight and has a high mass density and light yield. Combined with a highly efficient light detection system this allows tagging of the subsequent germanium decay and thus a clean distinction of gallium capture and elastic neutrino electron scattering events. With 1.5 tons of scintillator and 10 source runs of 3.4MCi, each, we obtain about 760 gallium capture events with a purity of 85% and 680,000 neutrino electron scattering events, where the latter provide a precise normalization independent of any nuclear physics. This configuration would allow to test the gallium anomaly at more than $5σ$ in an independent way.
