| A systematic study of the superdeformation of Pb isotopes with relativistic mean field theory |
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| 作者姓名： | 郭建友 圣宗强 方向正 |
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| 作者单位： | School of Physics and Material Science，Anhui University，Department of Mathematics and Physics，Anhui University of Science and Technology |
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| 摘 要： | The microscopically constrained relativistic mean field theory is used to investigate the superdeformation for Pb isotopes. The calculations have been performed with the four different interactions NL3, PK1, TM1 and NLSH, and show that there exists a clear superdeformed minimum in the potential energy surfaces. The excitation energy, deformation and depth of the well in the
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| 关 键 词： | Pb isotopes superdeformation relativistic mean field theory |
| 收稿时间： | 2008-2-26 |
| 修稿时间： | 2008-5-19 |
A systematic study of the superdeformation of Pb isotopes with relativistic mean field theory |
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| GUO Jian-You, SHENG Zong-Qiang FANG Xiang-Zheng.A systematic study of the superdeformation of Pb isotopes with relativistic mean field theory[J].High Energy Physics and Nuclear Physics,2008,32(11):886-891. |
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| Authors: | GUO Jian-You SHENG Zong-Qiang FANG Xiang-Zheng |
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| Affiliation: | GUO Jian-You1,1) SHENG Zong-Qiang2 FANG Xiang-Zheng1 1 |
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| Abstract: | The microscopically constrained relativistic mean field theory is used to investigate the superdefor-mation for Pb isotopes.The calculations have been performed with the four different interactions NL3,PK1,TM1 and NLSH,and show that there exists a clear superdeformed minimum in the potential energy surfaces.The excitation energy,deformation and depth of the well in the superdeformed minimum are comparable for the four different interactions.Furthermore the trend for the change of the superdeformed excitation energy with neutron number is correctly reproduced.The calculated two-neutron separation energy in the ground state and superdeformed minimum together with their differences are in agreement with the available data.The larger energy difference appearing in the superdeformed minimum reflects a lower average level density at superdeformations for Pb isotopes. |
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| Keywords: | Pb isotopes superdeformation relativistic mean field theory |
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