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arXiv 1302.6876nucl-thnucl-ex
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双β衰变半衰期的系统学评价

Systematics of Evaluated Half-Lives of Double-Beta Decay

Boris Pritychenko

摘要:

本文对2 β衰变半衰期及其系统学进行了新的评价。这些数据扩展了以前的评估,包括对所有最近测量结果的分析。提取了12个核2 β衰变跃迁的核矩阵元素。推荐值进行了比较与大型壳模型,QRPA计算,和实验数据。128、130 Te推荐值呈T_2nu 1/2 ~ 1/E_8系统趋势。这种趋势表明Te核中的核基质元素的相似性,并预测为2 β(2nu)-衰变模式。完整的结果列表可在http://www.nndc.bnl.gov/bbdecay/上获得。

英文摘要:

A new evaluation of 2beta-decay half lives and their systematics is presented. These data extend the previous evaluation and include the analysis of all recent measurements. The nuclear matrix elements for 2beta-decay transitions in 12 nuclei have been extracted. The recommended values are compared with the large-scale shell-model, QRPA calculations, and experimental data. A T2nu 1/2 ~ 1/E8 systematic trend has been observed for recommended 128,130Te values. This trend indicates similarities for nuclear matrix elements in Te nuclei and was predicted for 2beta(2nu)-decay mode. The complete list of results is available online at http://www.nndc.bnl.gov/bbdecay/.

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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