Collective states and shape competition in ^126Te
High-spin states in ^126Te have been investigated by using in-beam γ ray spectroscopy with the ^124Sn（^7Li,1p4n）^126Te reaction at a beam energy of 48 MeV.The previously known level scheme has been enriched,and a new negative-parity sequence has been established.The yrast positive-parity band shows...
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| Published in | 中国物理C：英文版 Vol. 41; no. 4; pp. 60 - 68 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2017
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| Online Access | Get full text |
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| Summary: | High-spin states in ^126Te have been investigated by using in-beam γ ray spectroscopy with the ^124Sn（^7Li,1p4n）^126Te reaction at a beam energy of 48 MeV.The previously known level scheme has been enriched,and a new negative-parity sequence has been established.The yrast positive-parity band shows a shape change between triaxial shape and collective oblate shape as a function of spin.In particular,three competitive minima appear in the potential energy surface for the I^π=8^＋ states,with one aligned state at γ =-120° and two triaxial states atγ -30° and-45°,respectively.The signature splitting behavior of the negative-parity band is discussed.The shape change with increasing angular momentum and the signature splitting can be interpreted well in terms of the Cranked Nilsson-Strutinsky-Bogoliubov and Cranked Nilsson-Strutinsky model calculations. |
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| Bibliography: | High-spin states in ^126Te have been investigated by using in-beam γ ray spectroscopy with the ^124Sn（^7Li,1p4n）^126Te reaction at a beam energy of 48 MeV.The previously known level scheme has been enriched,and a new negative-parity sequence has been established.The yrast positive-parity band shows a shape change between triaxial shape and collective oblate shape as a function of spin.In particular,three competitive minima appear in the potential energy surface for the I^π=8^＋ states,with one aligned state at γ =-120° and two triaxial states atγ -30° and-45°,respectively.The signature splitting behavior of the negative-parity band is discussed.The shape change with increasing angular momentum and the signature splitting can be interpreted well in terms of the Cranked Nilsson-Strutinsky-Bogoliubov and Cranked Nilsson-Strutinsky model calculations. shape competition, signature splitting, collective states Liu-Chun He, Vun Zheng, Li-Hua Zhu, Hai-Liang Ma2, Xiao-Guang Wu2,Chuang-Ye He 2,Guang-Sheng Li 2,Lie-Lin Wang 2,4, Xin Hao 2,2,Ying Liu 2, Xue-Qin Li 2, Bo Pan 2, Zhong-Yu Li5, Huai-Bo Ding 6（ 1 School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China; 2 China Institute of Atomic Energy, Beijing 102413, China ; 3 Faculty of Science, Shenzhen University, Shenzhen 518060, China ;4 Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Mianyang 621010, China ; 5 School of Physics, Peking University, Beijing 100871, China ;6 Department of Physics, Tsinghua University, Beijing 100084, China） 11-5641/O4 |
| ISSN: | 1674-1137 0254-3052 |