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题名: HALF-LIVES OF THIRTEEN DOUBLE beta(-)-DECAY CANDIDATES WITH TWO NEUTRINOS
作者: Ren, YJ;  Ren, ZZ
刊名: ROMANIAN JOURNAL OF PHYSICS
出版日期: 2015
卷号: 60, 期号:5-6, 页码:792-798
关键词: Double-beta decay ;  new candidates of emitters ;  systematics law of half-lives
学科分类: Physics
通讯作者: Ren, YJ (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
文章类型: Article; Proceedings Paper
英文摘要: Double beta(-)-decay with two neutrinos is one of the important decay modes for an unstable nucleus which can spontaneously change into a stable nucleus. It is also a very complex decay process where three kinds of interactions, the strong interaction, the Coulomb interaction, and the weak interaction, are involved. Recently we have made a systematic analysis on the experimental data of nuclear double beta(-)-decay and proposed that there is a law between the logarithm of double beta(-)-decay half-lives and the reciprocal of the decay energy. This is a simple and accurate law for half-lives of the double beta(-)-decay. We use this law to predict the half-lives of the double beta(-)-decay candidates where the mass number of parent nuclei ranges from A=70 (Zn-70) to A = 204 (Hg-204). Numerical results of the half-lives show that Ce-142 is a very interesting candidate for future experiments to search new emitters of the double beta(-)-decay. We also compare the half-lives of double beta(-)-decay and alpha-decay for Ce-142 where its decay energies of two modes are close and find that double beta(-)-decay dominates in this case although double beta(-)-decay is a second order process of the weak interaction. The branching ratios between double beta(-)-decay and alpha-decay are listed for the candidates of double beta(-)-decay.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: DOUBLE-BETA-DECAY ;  PARITY CONSERVATION
收录类别: SCI
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21125
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Ren, YJ,Ren, ZZ. HALF-LIVES OF THIRTEEN DOUBLE beta(-)-DECAY CANDIDATES WITH TWO NEUTRINOS[J]. ROMANIAN JOURNAL OF PHYSICS,2015,60(5-6):792-798.
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文件名: HALF-LIVES OF THIRTEEN DOUBLE beta(-)-DECAY CANDIDATES WITH TWO NEUTRINOS.pdf
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