Superdeformed band in the N = Z+4 nucleus Ar-40 : A projected shell model analysis
文献类型：期刊论文
| 作者 | Yang, Ying-Chun1,6; Liu, Yan-Xin2; Sun, Yang1,3,4; Guidry, Mike5 |
| 刊名 | EUROPEAN PHYSICAL JOURNAL A
 |
| 出版日期 | 2018-12-17 |
| 卷号 | 54期号:12页码:217 |
| ISSN号 | 1434-6001 |
| DOI | 10.1140/epja/i2018-12651-x |
| 英文摘要 | .Ar-40 is among the few sd -shell nuclei known to exhibit superdeformation. An interesting question is whether the experimentally identified superdeformed rotational band in Ar-40 has an axially or triaxially deformed shape. Projected shell model calculations assuming an axially deformed basis are performed up to high spins for this nucleus. Our detailed analysis of the wave functions reveals that the high-spin states are dominated by mixed 0-, 2-, and 4-quasiparticle configurations with different K-components. The calculated electric quadrupole transition probabilities reproduce well the known experimental data and suggest a reduced but still significant collectivity in the high spin region. Due to the mixing of various multi-quasiparticle K-configurations, axial asymmetry emerges in the calculation. Throughout the entire rotational band, the extracted triaxial deformation parameters are small but non-zero. Relations of triaxiality and unnatural spin-parity states of the superdeformed side-band are discussed. |
| WOS关键词 | ROTATIONAL BANDS ; DEFORMATION ; COEXISTENCE ; MOMENTS |
| 资助项目 | National Key Program for S&T Research and Development[2016YFA0400501] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000453935600002 |
| 源URL | [http://119.78.100.186/handle/113462/64471]  |
| 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, Sch Phys & Astron, Shanghai 200240, Peoples R China 2.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China 3.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA, Shanghai 200240, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 5.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA 6.Shanghai Jiao Tong Univ Press, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Ying-Chun,Liu, Yan-Xin,Sun, Yang,et al. Superdeformed band in the N = Z+4 nucleus Ar-40 : A projected shell model analysis[J]. EUROPEAN PHYSICAL JOURNAL A,2018,54(12):217. |
| APA | Yang, Ying-Chun,Liu, Yan-Xin,Sun, Yang,&Guidry, Mike.(2018).Superdeformed band in the N = Z+4 nucleus Ar-40 : A projected shell model analysis.EUROPEAN PHYSICAL JOURNAL A,54(12),217. |
| MLA | Yang, Ying-Chun,et al."Superdeformed band in the N = Z+4 nucleus Ar-40 : A projected shell model analysis".EUROPEAN PHYSICAL JOURNAL A 54.12(2018):217. |
入库方式： OAI收割
来源：近代物理研究所
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