Systematic study on alpha decay half-lives of superheavy nuclei
文献类型：期刊论文
| 作者 | Zhang Hong-Fei; Li Jun-Qing; Zuo Wei; Zhou Xiao-Hong; Gan Zai-Guo |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2007-09-15 |
| 卷号 | 48期号:3页码:545-552 |
| 关键词 | superheavy nucleus alpha decay life time |
| ISSN号 | 0253-6102 |
| 英文摘要 | The a-decay half-lives of a set of superheavy nuclear isotope chain from Z = 105 to 120 have been analyzed systematically within the WKB method, and some nuclear structure features are found. The decay barriers have been determined in the quasi-molecular shape path within the Generalized Liquid Drop Model (GLDM) including the proximity effects between nucleons in a neck and the mass and charge asymmetry. The results are in reasonable agreement with the published experimental data for the alpha decay half-lives of isotopes of charge 112, 114, and 116, of the element 294118 and of some decay products. A comparison of present calculations with the results by the DDM3Y effective interaction and by the Viola-Seaborg Sobiczewski (VSS) formulae is also made. The experimental a decay half lives all stand in between the GLDM calculations and VSS formula results. This demonstrates the possibility of these models to provide reasonable estimates for the half-lives of nuclear decays by a emissions for the domain of SHN. The half-lives of these new nuclei are thus well tested from the reasonable consistence of the macroscopic, the microscopic, the empirical formulae and the experimental data. This also shows that the present data of SHN themselves are consistent. It could suggest that the present experimental claims on the existence of new elements Z = 110 similar to 118 are reliable. It is expected that greater deviations of a few SHN between the data and the model may be eliminated by further improvements on the precision of the measurements. |
| WOS关键词 | QUASI-MOLECULAR SHAPES ; HEAVIEST ELEMENTS ; HEAVY-NUCLEI ; EMISSION ; STABILITY ; CA-48 ; FISSION ; ENERGY ; MODEL |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000249600300031 |
| 出版者 | INT ACADEMIC PUBLISHERS LTD |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/5891]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） |
| 通讯作者 | Zhang Hong-Fei |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 3.Res Ctr Nucl Theory, Lab Heavy Ion Accelerator Lanzhou, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Hong-Fei,Li Jun-Qing,Zuo Wei,et al. Systematic study on alpha decay half-lives of superheavy nuclei[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2007,48(3):545-552. |
| APA | Zhang Hong-Fei,Li Jun-Qing,Zuo Wei,Zhou Xiao-Hong,&Gan Zai-Guo.(2007).Systematic study on alpha decay half-lives of superheavy nuclei.COMMUNICATIONS IN THEORETICAL PHYSICS,48(3),545-552. |
| MLA | Zhang Hong-Fei,et al."Systematic study on alpha decay half-lives of superheavy nuclei".COMMUNICATIONS IN THEORETICAL PHYSICS 48.3(2007):545-552. |
入库方式： OAI收割
来源：近代物理研究所
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