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β-delayed proton decay of the proton drip-line nucleus142Ho in the rare-earth region

文献类型：期刊论文

作者Xu, Shuwei; Li, Zhankui; Xie, Yuanxiang; Xu, Furong; Wang, Xudong; Guo, Bin; Leng, Changgeng; Yu, Yong; Wang, Chunfang; Xing, Jianping
刊名Science in China, Series G: Physics Astronomy
出版日期2003
卷号46页码:9
ISSN号1672-1799
英文摘要New β-delayed proton precursor 142Ho was produced via heavy ion induced reaction 106Cd(40Ca, p3n), and identified for the first time by using a He-jet fast tape transport system in combination with "ρ-γ" coincidence measurements. The β-delayed proton decay of 142Ho was observed and its half life was determined to be (0.4±0.1) s. By fitting the experimental relative branching ratios to final states in the proton daughter nucleus 141Tb and the energy spectrum of β-delayed protons with a statistical model calculation, the ground-state spin of 142Ho was assigned as 5, 6 or 7. Nuclear energy-potential-surface (EPS) calculations were performed using the Woods-Saxon Strutinsky method. The calculated results favored the assignments of 7 - to 142Ho. As the by-products, some γ-transitions in the proton daughter nuclei following the β-delayed proton decays of precursors 139Gd, 140Tb, 142Tb, and 143Dy were reported here for the first time.
出版者Science in China Press, Beijing, China
源URL[http://119.78.100.186/handle/113462/64295]  
专题中国科学院近代物理研究所
作者单位1.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2.Department of Technical Physics, Peking University, Beijing 100871, China
推荐引用方式
GB/T 7714		 Xu, Shuwei,Li, Zhankui,Xie, Yuanxiang,et al. β-delayed proton decay of the proton drip-line nucleus142Ho in the rare-earth region[J]. Science in China, Series G: Physics Astronomy,2003,46:9.
APA Xu, Shuwei.,Li, Zhankui.,Xie, Yuanxiang.,Xu, Furong.,Wang, Xudong.,...&Chen, Hongyan.(2003).β-delayed proton decay of the proton drip-line nucleus142Ho in the rare-earth region.Science in China, Series G: Physics Astronomy,46,9.
MLA Xu, Shuwei,et al."β-delayed proton decay of the proton drip-line nucleus142Ho in the rare-earth region".Science in China, Series G: Physics Astronomy 46(2003):9.

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来源：近代物理研究所

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