地中微子和氢化地球（或原始富氢行星）
Geoneutrinos and Hydridic Earth (or primordially Hydrogen-Rich Planet)
摘要：
地中微子是地球化学成分信息的新渠道。我们在这里分析了以下问题。我们需要什么统计数据来区分块状硅酸盐地球模型和氢化地球模型对Th/U信号比的预测？得到了Th/U信号比误差的简单估算公式。计算结果表明，对于格兰萨索地下实验室和萨德伯里中微子观测站，我们需要比$22 kt \cdot year$更多的曝光量。在日本所有核电站停止的情况下，我们需要的不仅仅是对神冈现场的$27 kt \cdot year$展示。
英文摘要：
Geoneutrino is a new channel of information about geochemical composition of the Earth. We alnalysed here the following problem. What statistics do we need to distinguish between predictions of Bulk Silicate Earth model and Hydridic Earth model for Th/U signal ratio? We obtained the simple formula for estimation of error of Th/U signal ratio. Our calculations show that we need more than $22 kt \cdot year$ exposition for Gran-Sasso underground laboratory and Sudbury Neutrino Observatory. We need more than $27 kt \cdot year$ exposition for Kamioka site in the case of stopping of all Japanese nuclear power plants.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
