Signature partners in superdeformed Tb-149
文献类型：期刊论文
| 作者 | Wu, CS |
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2001-03-01 |
| 卷号 | 25页码:205-211 |
| 关键词 | superdeformed band nuclear moment of inertia spin assignment ab-expresion and its modification signature partner |
| ISSN号 | 0254-3052 |
| 英文摘要 | Five superdeformed bands observed in Tb-149 were investigated comprehensively. A large-amplitude fluctuation in the observed transition energies and hence in the extracted dynamic moments of inertia was found in most of these bands. The smoothed transition energies were deduced by removing the fluctuation. The spins of these bands were assigned conclusively by the ab-fitting and/or its modification. Two pairs of superdeformed bands in Tb-149,i.e. bands 3,5 and bands 2,4,were proposed to be signature partners. The exit spins are 59/2 and 61/2 for the former pair,and 49/2 and 63/2 for the latter pair. These values are different by one unit from those given from a comparison with Tb-150(1). In fact,the spins of Tb-150(1), which have not been determined experimentally,are different by different theoretical approaches of assignment. The de-coupling constants were extracted from the modified ab-fitting. Responsible Omega = 1/2 orbit in the vicinity of the Fermi surface of Tb-149 seems to be nu [640]up arrow for bands 2 and 4,and pi [301]down arrow for bands 3 and 5. The exit spin of band 1 was assigned as 53/2 or 55/2,which may be picked out from the observation of its signature partner. Good correspondence between these bands(especially bands 2,4 and 5) and their identical bands was obtained. |
| WOS关键词 | DELTA-I=4 BIFURCATION ; SPIN ASSIGNMENTS ; BANDS ; NUCLEI ; REGION |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000167615700005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.186/handle/113462/37365]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wu, CS |
| 作者单位 | 1.Peking Univ, Dept Phys, Beijing 100871, Peoples R China 2.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, CS. Signature partners in superdeformed Tb-149[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2001,25:205-211. |
| APA | Wu, CS.(2001).Signature partners in superdeformed Tb-149.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,25,205-211. |
| MLA | Wu, CS."Signature partners in superdeformed Tb-149".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 25(2001):205-211. |
入库方式： OAI收割
来源：近代物理研究所
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