Shape-coexisting rotation in neutron-deficient Hg and Pb nuclei
文献类型：期刊论文
| 作者 | Jiao, CF; Shi, Y; Liu, HL; Xu, FR; Walker, PM |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2015 |
| 卷号 | 91期号:3页码:34309 |
| 通讯作者 | Jiao, CF (reprint author), Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China. |
| 英文摘要 | For a shape-soft nucleus, the deformation change with increasing angular momentum of rotation can be significant. Total-Routhian-surface (TRS) calculations include the shape changes, but angular momentum is not conserved (neither is it a good quantum number, nor is it kept unchanged in the whole TRS mesh). In the projected shell model (PSM), the angular momentum appears as a good quantum number, but calculations have usually been performed with fixed deformation. In the present work, by performing angular-momentum projection on the mean-field potential-energy surface (PES), we can obtain an angular-momentum-conserved PES which gives deformation for a rotational state at a given spin. In order to investigate the shape-changing effect, we have chosen neutron-deficient Hg and Pb isotopes in which shape coexistence occurs. We interpret the irregular rotational behavior of the oblate bands at low spin as arising from deformation changes which are induced by collective rotation. At higher spin, the oblate rotational spectrum can also be influenced by the crossing between the K = 0 ground-state band and a low-K two-quasineutron band. Calculated g factors for the states of oblate bands are given for future experimental testing, and the intrinsic structures of high-K oblate states are investigated. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear |
| 关键词[WOS] | ATOMIC-NUCLEI ; MEAN-FIELD ; EVEN-EVEN ; STATES ; ISOTOPES ; BAND ; DEFORMATIONS ; ISOMER ; REGION ; PB-186 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21061]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Jiao, CF,Shi, Y,Liu, HL,et al. Shape-coexisting rotation in neutron-deficient Hg and Pb nuclei[J]. PHYSICAL REVIEW C,2015,91(3):34309. |
| APA | Jiao, CF,Shi, Y,Liu, HL,Xu, FR,&Walker, PM.(2015).Shape-coexisting rotation in neutron-deficient Hg and Pb nuclei.PHYSICAL REVIEW C,91(3),34309. |
| MLA | Jiao, CF,et al."Shape-coexisting rotation in neutron-deficient Hg and Pb nuclei".PHYSICAL REVIEW C 91.3(2015):34309. |
入库方式： OAI收割
来源：理论物理研究所
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