Level structures of Rh-110,Rh-111,Rh-112,Rh-113 from measurements on Cf-252
文献类型：期刊论文
| 作者 | Luo, YX; Wu, SC; Gilat, J; Rasmussen, JO; Hamilton, JH; Ramayya, AV; Hwang, JK; Beyer, CJ; Zhu, SJ; Kormicki, J |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2004-02-01 |
| 卷号 | 69页码:15 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.69.024315 |
| 英文摘要 | Level schemes of Rh-111 and Rh-113 are proposed from the analysis of gamma-gamma-gamma coincidence data from a Cf-252 spontaneous fission source with Gammasphere. These schemes have the highest excitation energies and spins yet established in these nuclei, as well as weakly populated bands not reported in earlier fission-gamma work. From these data, information on shapes is inferred. By analogy with lighter Z=45 odd-even isotopes, tentative spins and parities are assigned to members of several rotational bands. In this region triaxial nuclear shapes are known to occur, and we carried out calculations for Rh-111 and Rh-113 with the triaxial-rotor-plus-particle model. The 7/2(+) pig(9/2) bands of both nuclei, as well as lighter isotopes studied by others, show similar signature splitting. Our model calculations give a reasonable fit to the signature splitting, collective sidebands, and transition probabilities at near-maximum triaxiality with gammaapproximate to28degrees. For the K=1/2(+)[431] band, experiment and model calculations do not fit well, which is accounted for by greater prolate deformation of the K=1/2(+) band, a case of shape coexistence. Our data on Rh-110,Rh-112 show no backbending and thus support the idea of the band crossing in the ground band of the odd-A neighbors being due to alignment of an h(11/2) neutron pair. In Rh-111,Rh-113 above the band crossing (spinsapproximate to21/2 (h) over bar) the ground band appears to split, with two similar branches. We consider the possibility that chiral doubling may be involved, but there are not enough levels to determine that. |
| WOS关键词 | HIGH-SPIN STRUCTURE ; ODD-ODD NUCLEI ; ROTOR MODEL ; ROTATION ; ISOTOPES ; REGION ; SHAPE |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000220491300025 |
| 出版者 | AMERICAN PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/39182]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Luo, YX |
| 作者单位 | 1.Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China 3.Joint Inst Heavy Ion Res, Oak Ridge, TN 37830 USA 4.Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA 5.Natl Tsing Hua Univ, Dept Phys, Hsinchu, Taiwan 6.Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China 7.Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna, Russia 8.Lawrence Livermore Natl Lab, Livermore, CA 94550 USA 9.Idaho Natl Environm & Engn Lab, Idaho Falls, ID 83415 USA 10.Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, Brazil |
| 推荐引用方式 GB/T 7714 | Luo, YX,Wu, SC,Gilat, J,et al. Level structures of Rh-110,Rh-111,Rh-112,Rh-113 from measurements on Cf-252[J]. PHYSICAL REVIEW C,2004,69:15. |
| APA | Luo, YX.,Wu, SC.,Gilat, J.,Rasmussen, JO.,Hamilton, JH.,...&Gelberg, A.(2004).Level structures of Rh-110,Rh-111,Rh-112,Rh-113 from measurements on Cf-252.PHYSICAL REVIEW C,69,15. |
| MLA | Luo, YX,et al."Level structures of Rh-110,Rh-111,Rh-112,Rh-113 from measurements on Cf-252".PHYSICAL REVIEW C 69(2004):15. |
入库方式： OAI收割
来源：近代物理研究所
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