LUMINEU: a search for neutrinoless double beta decay based on ZnMoO 4 scintillating bolometers
LUMINEU: a search for neutrinoless double beta decay based on ZnMoO 4 scintillating bolometers
复制标题
LUMINEU：基于 ZnMoO 4 闪烁辐射热测量计寻找无中微子双 β 衰变
DOI：
10.1088/1742-6596/718/6/062008
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Armengaud E
中科院分区：
文献类型：
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作者：
Armengaud E
LUMINEU的目的是调查的可能性，寻找中微子双β衰变在100钼的手段，一个大型阵列的闪烁测辐射热计的基础上，ZnMoO 4晶体富集在100钼。高能量分辨率和相对快速的探测器能够测量晶体中粒子相互作用产生的光和热，这对于识别和拒绝背景事件是非常有希望的。我们提出了LUMINEU的概念和实验结果，取得了地上和地下大质量的天然和富集晶体。测得的能量分辨率、α/β鉴别能力和放射性内部污染均在预计最终LUMINEU灵敏度的质量标准范围内。模拟和初步结果证实，LUMINEU技术可以在感兴趣的区域（约3 MeV）达到零背景，曝光量约为数百千克x年，为下一代0 v2 β衰变实验奠定了基础，该实验能够探索中微子质量模式的倒置层次区域。
The LUMINEU is designed to investigate the possibility to search for neutrinoless double beta decay in 100 Mo by means of a large array of scintillating bolometers based on ZnMoO4 crystals enriched in 100 Mo. High energy resolution and relatively fast detectors, which are able to measure both the light and the heat generated upon the interaction of a particle in a crystal, are very promising for the recognition and rejection of background events. We present the LUMINEU concepts and the experimental results achieved aboveground and underground with large-mass natural and enriched crystals. The measured energy resolution, the α/β discrimination power and the radioactive internal contamination are all within the specifications for the projected final LUMINEU sensitivity. Simulations and preliminary results confirm that the LUMINEU technology can reach zero background in the region of interest (around 3 MeV) with exposures of the order of hundreds kgxyears, setting the bases for a next generation 0v2β decay experiment capable to explore the inverted hierarchy region of the neutrino mass pattern.