寻找锡中激发态双β跃迁实验可行性的初步研究
Preliminary study of feasibility of an experiment looking for excited state double beta transitions in tin
摘要：
在意大利INFN的Gran Sasso国家实验室（LNGS）内，使用超低本底HPGe探测器（244 cm $^{3}$），尝试研究寻找$^{112}$ Sn和$^{124}$ Sn中双β衰变的新实验的可行性。对少量自然锡样品进行了2367.5h的测定。对样品的放射性污染进行了估算。还考虑了数据以计算拟定检索的当前灵敏度;测量了$β^{+}$ EC和$^{112}$ Sn中EC-EC过程的半衰期限值$\sim$ $10^{17} - 10^{18}$年和$^{124}$ Sn中$β^{-}β^{-}$转换的$\sim$ $10^{18}$年。在论文的最后一节中，讨论了为达到半衰期的理论估计值而建议的具有较大质量的实验的灵敏度的增强。
英文摘要：
An attempt to study the feasibility of a new experiment to search for double beta decay in $^{112}$Sn and $^{124}$Sn was carried out by using ultra-low background HPGe detector (244 cm$^{3}$) inside the Gran Sasso National Laboratory (LNGS) of the INFN (Italy). A small sample of natural Sn was examined for 2367.5 h. The radioactive contamination of the sample has been estimated. The data has also been considered to calculate the present sensitivity for the proposed search; half-life limits $\sim$ $10^{17} - 10^{18}$ years for $β^{+}$EC and EC-EC processes in $^{112}$Sn and $\sim$ $10^{18}$ years for $β^{-}β^{-}$ transition in $^{124}$Sn were measured. In the last section of the paper the enhancement of the sensitivity for a proposed experiment with larger mass to reach theoretically estimated values of half-lives is discussed.
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。
