Next generation double-beta decay experiments: metrics for their evaluation
Next generation double-beta decay experiments: metrics for their evaluation
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下一代双β衰变实验：评估指标
DOI：
10.1088/1367-2630/7/1/006
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发表时间：
2005
影响因子：
3.3
通讯作者：
Y. Zdesenko
中科院分区：
文献类型：
--
作者：
F. Avignone;G. King;Y. Zdesenko
我们讨论了六个最重要的参数，应用于计算各种建议的搜索无中微子双β衰变（0νββ衰变）的优值。我们开始讨论这种衰变模式的电子中微子的有效马约拉纳质量的连接和预期的实验灵敏度的青睐的技术。然后，我们讨论了所提出的下一代0νββ-衰变实验技术的实验品质因数的表达式的上下文中。最后，我们讨论了各种拟议的实验中的背景下，他们的数字的优值参数。我们认为，重要的参数是核结构（理论衰变率）、母核的同位素丰度和0νββ衰变的探测效率。这些线性地进入方程。同样重要的是：源的质量和本底率，尽管这些都是二分之一的幂。能量分辨率，同时也进入品质因数的一半功率，是至关重要的发现潜力。
We discuss the six most important parameters that should be used in the computation of figures of merit of various proposed searches for neutrinoless double-beta decay (0νββ-decay). We begin by discussing the connection of this decay mode to the effective Majorana mass of the electron neutrino and the expected experimental sensitivities of favoured techniques. We then discuss the proposed next generation 0νββ-decay experimental techniques in the context of an expression for the experimental figure-of-merit. Finally, we discuss the various proposed experiments in the context of their figure-of-merit parameters. We conclude that the important parameters are the nuclear structure (theoretical rate of decay), isotopic abundance of the parent nuclide and detection efficiency for 0νββ-decay. These enter the equation linearly. Also important are: the mass of the source, and the background rate, although these enter to the one-half power. Energy resolution, while also entering the figure-of-merit to the one half power, is crucial for the discovery potential.