New levels and transitions in 72Ge observed in the 72As(β++EC)72Ge decay

被引：0
|
作者：
Shen, Shuifa [1 ,2 ,3 ]
Li, Yan [4 ]
Gu, Jiahui [4 ]
Xu, Furong [3 ]
Wen, Tingdun [5 ]
Liu, Yibao [2 ]
Yang, Yaxin [2 ]
机构：
[1] Minist Educ Res, E China Inst Technol, Key Lab Nucl Resources & Environm, Nanchang 330013, Peoples R China
[2] E China Inst Technol, Sch Nucl Engn & Technol, Fuzhou 344000, Jiangxi, Peoples R China
[3] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[4] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[5] N Univ China, Dept Phys, Taiyuan 030051, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS | 2008年 / 17卷 / 06期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
decay; gamma-ray; level; coincidence;
D O I：
10.1142/S0218301308010118
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The decay of (72)As has been investigated by means of gamma-ray spectroscopy. The 72As nuclei were produced through the (72)Ge(p,n)(72)As reaction. The Compton-suppressed spectrometer and high-purity Ge detectors have been used in singles and in coincidence modes respectively to study gamma-rays in the beta(+) + EC decay of (72)As to (72)Ge. 79 gamma-rays, among which 3 were observed for the first time, were reported. A decay scheme of 72As including 1 new level is proposed that accommodates 77 of these transitions. Tentative spin and parity assignments are suggested for a number of levels according to the log ft values and gamma-branching ratios.
引用
收藏
页码：1061 / 1074
页数：14
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