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| Multi-quasiparticle excitations in ~(145)Tb | |
| 作者姓名： | T. Hayakawa M. Oshima T. Toh T. Shizuma J. Katakura Y. Hatsukawa M. Matsuda H. Kusakari M. Sugawara |
| 作者单位： | Japan Atomic Energy Research Institute，Tokai，Ibaraki 319-1195，Japan，Japan Atomic Energy Research Institute，Tokai，Ibaraki 319-1195，Japan，Japan Atomic Energy Research Institute，Tokai，Ibaraki 319-1195，Japan，Japan Atomic Energy Research Institute，Tokai，Ibaraki 319-1195，Japan，Japan Atomic Energy Research Institute，Tokai，Ibaraki 319-1195，Japan，Japan Atomic Energy Research Institute，Tokai，Ibaraki 319-1195，Japan，Japan Atomic Energy Research Institute，Tokai，Ibaraki 319-1195，Japan，Chiba University，Inage-ku，Chiba 263-8512，Japan，Chiba Institute of Technology，Narashino，Chiba 275-0023，Japan |
| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划) |
| 摘 要： | Nuclei with N and Z near magic number can be well described by the nuclear shell model. The 145Tb nucleus has a valence proton and a pair of neutron holes with respect to the doubly closed 146Gd nucleus. Therefore, it is expected that the excitations in 145Tb be dominated by single-particle configurations. A detailed measurement of the excitation scheme in 145Tb would give us an opportunity to examine the behavior of multi-particle excitations involving high angular momentum orbits and provi… |
Multi-quasiparticle excitations in 145Tb |
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| T. Hayakawa,M. Oshima,T. Toh,T. Shizuma,J. Katakura,Y. Hatsukawa,M. Matsuda,H. Kusakari,M. Sugawara.Multi-quasiparticle excitations in ~(145)Tb[J].Science in China(Physics Astronomy),2004,47(5). | |
| Authors: | ZHENG Yong ZHOU Xiaohong ZHANG Yuhu LIU Minliang GUO Yingxiang LEI Xiangguo T Hayakawa M Oshima TToh TShizuma JKatakura Y Hatsukawa MMatsuda HKusakari MSugawara |
| Institution: | 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2. Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan 3. Chiba University, Inage-ku, Chiba 263-8512, Japan 4. Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan |
| Abstract: | High-spin states in 145Tb have been populated using the 118Sn (32S, 1p4n) reaction at beam energy of 165 MeV. The level scheme of 145Tb has been established up to Ex ≈7.4 MeV. The level scheme shows characteristics of a spherical or slightly oblate nucleus. Based on the systematic trends of the level structure in the neighboring N = 80 isotones, the level structure in 145Tb below 2 MeV excitation is well explained by coupling an h11/2valence proton to the even-even 144Gd core. Above 2 MeV excitation, most of the yrast levels are interpreted with multi-quasiparticle shell-model configurations. |
| Keywords: | high-spin states level scheme multi-quasiparticle excitations |
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