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arXiv 1605.05976nucl-ex
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$^{74}$ Se中的双电子俘获搜索

Double electron capture searches in $^{74}$Se

B. Lehnert, T. Wester, D. Degering, D. Sommer, L. Wagner, K. Zuber

摘要:

在德国Felsenkeller实验室用超低本底锗探测器对$^{74}$ Se的各种双电子俘获模式进行了研究。特别是对于潜在的共振跃迁到1204.2 keV的激发态的$^{74}$锗的半衰期下限$0.70\cdot 10^{19}$年(90%的可信度)已获得。在最近的一些出版物中,对获得的$^{74}$ Se限值的有效性提出了严重的担忧。

英文摘要:

A search for various double electron capture modes of $^{74}$Se has been performed using an ultralow background Ge-detector in the Felsenkeller laboratory, Germany. Especially for the potentially resonant transition into the 1204.2 keV excited state of $^{74}$Ge a lower half-life limit of $0.70\cdot 10^{19}$ yr (90% credibility) has been obtained. Serious concerns are raised about the validity of obtained $^{74}$Se limits in some recent publications.

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。

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