中微子绝对质量测量实验
Experiments for the absolute neutrino mass measurement
摘要：
简要评述了中微子绝对质量标度测量的各种方法的实验结果和前景。来自宇宙学观测、双β衰变搜索和单β衰变光谱学的质量灵敏度在灵敏度和模型依赖性方面不同。下一代实验在三个领域达到最轻质量本征态的$m_1<0.2eV$的灵敏度，这将最终回答中微子质量本征态是否简并的问题。这种灵敏度也是通过唯一的与模型无关的单次β衰变方法（KATRIN实验）达到的。为了提高模型依赖性代价的灵敏度，必须采用无中微子双β衰变搜索和宇宙学观测。在这里，在未来十年的敏感性接近的潜力，以测试倒置层次模型。
英文摘要：
Experimental results and perspectives of different methods to measure the absolute mass scale of neutrinos are briefly reviewed. The mass sensitivities from cosmological observations, double beta decay searches and single beta decay spectroscopy differ in sensitivity and model dependance. Next generation experiments in the three fields reach the sensitivity for the lightest mass eigenstate of $m_1<0.2eV$, which will finally answer the question if neutrino mass eigenstates are degenerate. This sensitivity is also reached by the only model-independent approach of single beta decay (KATRIN experiment). For higher sensitivities on cost of model-dependance the neutrinoless double beta decay search and cosmological observation have to be applied. Here, in the next decade sensitivities are approached with the potential to test inverted hierarchy models.
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