LEGEND实验中利用超纯塑料封装减少${}^{42}$Ar/${}^{42}$K本底的缓解策略
Mitigation Strategies for ${}^{42}$Ar/${}^{42}$K Background Reduction using Encapsulation with Ultra-Pure Plastic for the LEGEND Experiment
AI总结：
针对LEGEND实验中液态氩主动veto内${}^{42}$Ar/${}^{42}$K本底问题，研究采用3D打印超纯塑料（如PEN）封装锗探测器以缓解本底，并给出模拟结果与后续材料研究计划。
摘要：
无中微子双β衰变（0$νββ$）是确定中微子马约拉纳性质并测量有效马约拉纳中微子质量的最具说服力的途径。LEGEND合作组正致力于以前所未有的灵敏度寻找${}^{76}$Ge的0$νββ$衰变。如果无法获得地下来源的氩气，则宇宙成因同位素${}^{42}$Ar及其衰变子体${}^{42}$K可能对液态氩主动 veto 中的0$νββ$信号造成具有挑战性的本底。我们正在研究缓解${}^{42}$K本底的方法。为实现这一目标，目前正在研究使用低本底材料通过3D打印技术封装锗探测器。本文介绍了聚(2,6-萘二甲酸乙二醇酯)（PEN）封装锗探测器的模拟结果，以及研究其他潜在材料的计划。
英文摘要：
Neutrinoless double-beta (0$νββ$) decay is the most compelling approach to determine the Majorana nature of neutrino and measure effective Majorana neutrino mass. The LEGEND collaboration is aiming to look for 0$νββ$ decay of ${}^{76}$Ge with unprecedented sensitivity. If underground-sourced argon is not available, the cosmogenically-induced isotope ${}^{42}$Ar and its decay progeny ${}^{42}$K in the liquid argon active veto could create a challenging background for the 0$νββ$ signal. We are studying methodologies to mitigate the ${}^{42}$K background. In order to achieve this, encapsulation of germanium detectors with 3D-printed technologies using low background material are currently under investigation. Simulation results of Poly(ethylene 2,6- naphthalate) (PEN) encapsulation of germanium detectors and plans to study other potential materials are presented.
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。
