| Ground-State Properties of Ca Isotopes and the Density Dependence of the Symmetry Energy |
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| 作者姓名： | 梁钧 马中玉 陈宝秋 |
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| 作者单位： | [1]China Institute of Atomic Energy, Beijing 102413 [2]Department of Physics, University of Technology of Taiyuan, Taiyuan 030024 [3]Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10235030, 10475116, and 10535010. |
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| 摘 要： |
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| 关 键 词： | 基态 钙同位素 密度 对称性能量 中子 非线性耦合 |
| 收稿时间： | 2006-03-07 |
| 修稿时间： | 2006-03-07 |
Ground-State Properties of Ca Isotopes and the Density Dependence of the Symmetry Energy |
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| LIANG Jun, MA Zhong-Yu, CHEN Bao-Qiu.Ground-State Properties of Ca Isotopes and the Density Dependence of the Symmetry Energy[J].Chinese Physics Letters,2006,23(7):1719-1722. |
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| Authors: | LIANG Jun MA Zhong-Yu CHEN Bao-Qiu |
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| Abstract: | A relativistic mean field model is used to study the ground-state properties of neutron-rich nuclei in Ca isotopes. An additional isoscalar and isovector nonlinear coupling has been introduced in the relativistic mean field model, which could soften the symmetry energy, while keep the agreement with the experimental data. The sensitivity of proton and neutron density distributions and single particle states in Ca isotopes to the additional isoscalarisovector nonlinear coupling term is investigated. We found that the binding energies, the density distributions of single particle levels are strongly correlated with the density dependence of the symmetric energy in nuclear matter. |
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