Shell evolution in neutron-rich carbon isotopes: Unexpected enhanced role of neutron-neutron correlation
文献类型：期刊论文
| 作者 | Yuan, C. X.1; Qi, C.1,2; Xu, F. R.1,3 |
| 刊名 | NUCLEAR PHYSICS A
 |
| 出版日期 | 2012-06-01 |
| 卷号 | 883页码:25-34 |
| 关键词 | Shell Model Shell Evolution N=14 Shell Carbon Isotopes |
| ISSN号 | 0375-9474 |
| DOI | 10.1016/j.nuclphysa.2012.04.003 |
| 文献子类 | Article |
| 英文摘要 | Full shell-model diagonalization has been performed to study the structure of neutron-rich nuclei around C-20. We investigate in detail the roles played by the different monopole components of the effective interaction in the evolution of the N = 14 shell in C, N and O isotopes. It is found that the relevant neutron neutron monopole terms, V-d5/2d5/2(nn) and V-s1/2s1/2(nn) contribute significantly to the reduction of the N = 14 shell gap in C and N isotopes in comparison with that in O isotopes. The origin of this unexpectedly large effect, which is comparable with (sometimes even larger than) that caused by the proton neutron interaction, is related to the enhanced configuration mixing in those nuclei due to many-body correlations. Such a scheme is also supported by the large B(E2) value in the nucleus C-20 which has been measured recently. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS关键词 | MODEL ; NUCLEI ; TRANSITIONS ; STABILITY ; STATES |
| 资助项目 | Swedish Research Council (VR)[623-2009-7340] ; Swedish Research Council (VR)[621-2010-4723] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000304628900002 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/49057]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xu, F. R. |
| 作者单位 | 1.Peking Univ, State Key Lab Nucl Phys & Technol, Sch Phys, Beijing 100871, Peoples R China 2.AlbaNova Univ Ctr, KTH Royal Inst Technol, SE-10691 Stockholm, Sweden 3.Natl Lab Heavy Ion Phys, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, C. X.,Qi, C.,Xu, F. R.. Shell evolution in neutron-rich carbon isotopes: Unexpected enhanced role of neutron-neutron correlation[J]. NUCLEAR PHYSICS A,2012,883:25-34. |
| APA | Yuan, C. X.,Qi, C.,&Xu, F. R..(2012).Shell evolution in neutron-rich carbon isotopes: Unexpected enhanced role of neutron-neutron correlation.NUCLEAR PHYSICS A,883,25-34. |
| MLA | Yuan, C. X.,et al."Shell evolution in neutron-rich carbon isotopes: Unexpected enhanced role of neutron-neutron correlation".NUCLEAR PHYSICS A 883(2012):25-34. |
入库方式： OAI收割
来源：近代物理研究所
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