论文标题
$^{100} $ mo中性链脱β衰减的新限制来自cupid-mo实验
New Limit for Neutrinoless Double-Beta Decay of $^{100}$Mo from the CUPID-Mo Experiment
论文作者
论文摘要
Laboratoire Souterrain de Modane（法国）的Cupid-Mo实验是丘比特的演示者，这是下一代吨量表的低温$0νβ$实验。它由4.2千克的阵列组成20个富集的li $ _ {2} $$^{100} $ moo $ $ _4 $闪烁的bolometers，以搜索违反$0νβ$ decay的Lepton数字，以$^{100} $ MO。有超过一年的运行（2.16千克$ \ times $ yr的物理数据），在感兴趣的地区没有任何事件，因此没有观察到$0νββ$的证据。我们报告了$^{100} $ mo $ t_ {1/2}> 1.5 \ times 10^{24} \，$ yr，$ yr，在90％C.I的半衰期中的半衰期$0νββ$衰减。极限对应于有效的Majorana Neutmino质量$ \ langle m_ {ββ} \ rangle $ $ $ <$（0.31---0.54）$ \，$ eV，取决于光主要中微子交换中的核基质元素。
The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale cryogenic $0νββ$ experiment. It consists of a 4.2 kg array of 20 enriched Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers to search for the lepton number violating process of $0νββ$ decay in $^{100}$Mo. With more than one year of operation (2.16 kg$\times$yr of physics data), no event in the region of interest and hence no evidence for $0νββ$ is observed. We report a new limit on the half-life of $0νββ$ decay in $^{100}$Mo of $T_{1/2} > 1.5 \times 10^{24}\,$yr at 90 % C.I. The limit corresponds to an effective Majorana neutrino mass $\langle m_{ββ} \rangle$ $<$ (0.31--0.54)$\,$eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.
