Characteristics of the 21/2(+) isomer in Mo-93: Toward the possibility of enhanced nuclear isomer decay
文献类型：期刊论文
| 作者 | Hasegawa, Munetake1,2; Sun, Yang1,2; Tazaki, Shigeru3; Kaneko, Kazunari4; Mizusaki, Takahiro5 |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2011-01-31 |
| 卷号 | 696页码:197-200 |
| 关键词 | High spin isomer Enhanced isomer decay Nuclear shell model |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2010.10.065 |
| 英文摘要 | To discuss whether an enhanced isomer decay is a preferred process in a plasma environment it is required to know the structure of the isomer as well as the nearby states. The spin-21/2, 6.85-hour high-spin isomer in Mo-93 is investigated within a shell model which well describes nuclei in this mass region. By using the obtained wave-functions which correctly reproduce the observed B(E2), B(E4), and B(M1) transitions, characteristics of the isomer are shown in comparison with the isomeric states in neighboring nuclei. Calculations suggest that these high-spin isomers are formed with almost pure single-particle-like configurations. The Mo-93 21/2(+) isomer has the predominant configuration pi(g(9/2))(8)(2) circle times nu d(5/2) lying below the 15/2(+), 17/2(+), and 19/2(+) states due to neutron-proton interaction, which is the physical origin of its long lifetime. The key E2 transition that connects the 21/2(+) isomer to the upper 17/2(+) level is predicted to be substantial (3.5 W.u.), and therefore there is a real prospect for observing induced isomer deexcitation. (C) 2010 Elsevier B.V. All rights reserved. |
| WOS关键词 | MODEL ; SHELL |
| 资助项目 | National Natural Science Foundation of China[10875077] ; National Natural Science Foundation of China[11075103] ; Chinese Major State Basic Research Development Program[2007CB815005] ; SJTU-INS Research Project ; Shanghai Pu-Jiang grant |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000287176500004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; Chinese Major State Basic Research Development Program ; SJTU-INS Research Project ; Shanghai Pu-Jiang grant |
| 源URL | [http://119.78.100.186/handle/113462/33569]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Sun, Yang |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Fukuoka Univ, Dept Appl Phys, Fukuoka 8140180, Japan 4.Kyushu Sangyo Univ, Dept Phys, Fukuoka 8138503, Japan 5.Senshu Univ, Inst Nat Sci, Tokyo 1018425, Japan |
| 推荐引用方式 GB/T 7714 | Hasegawa, Munetake,Sun, Yang,Tazaki, Shigeru,et al. Characteristics of the 21/2(+) isomer in Mo-93: Toward the possibility of enhanced nuclear isomer decay[J]. PHYSICS LETTERS B,2011,696:197-200. |
| APA | Hasegawa, Munetake,Sun, Yang,Tazaki, Shigeru,Kaneko, Kazunari,&Mizusaki, Takahiro.(2011).Characteristics of the 21/2(+) isomer in Mo-93: Toward the possibility of enhanced nuclear isomer decay.PHYSICS LETTERS B,696,197-200. |
| MLA | Hasegawa, Munetake,et al."Characteristics of the 21/2(+) isomer in Mo-93: Toward the possibility of enhanced nuclear isomer decay".PHYSICS LETTERS B 696(2011):197-200. |
入库方式： OAI收割
来源：近代物理研究所
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