| Microscopic study of 7Li-nucleus potential |
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| 作者姓名： | 陈文棣 郭海瑞 孙伟力 叶涛 应阳君 韩银录 申庆彪 |
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| 作者单位： | Graduate School of China Academy of Engineering Physics;Institute of Applied Physics and Computational Mathematics;Key Laboratory of Nuclear Data |
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| 基金项目： | Supported by National Natural Science Foundation of China(11705009,11575291);Science Challenge Project(TZ2018005)。 |
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| 摘 要： | A microscopic approach is employed to study the optical potential for the 7Li-nucleus interaction system without any free parameters.It is obtained by folding the microscopic optical potentials of the constituent nucleons of 7Li over their density distributions.We employ an isospin-dependent nucleon microscopic optical potential,which is based on the Skyrme nucleon-nucleon effective interaction and derived using the Green's function method,as the nucleon optical potential.The harmonic oscillator shell model is used to describe the internal wave function of 7Li and obtain the nucleon density distribution.The 7Li microscopic optical potential is used to predict the reaction cross-sections and elastic scattering angular distributions for the target range from 27Al to 208Pb and energy range below 450 MeV.Generally,the results can reproduce the measured data reasonably well.In addition,the microscopic optical potential is comparable to a global phenomenological optical potential by fitting the presently existing measured data.
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| 关 键 词： | 7 LI MICROSCOPIC optical POTENTIAL 7 LI elastic SCATTERING FOLDING model |
| 收稿时间： | 2020-05-01 |
Microscopic study of ~7Li-nucleus potential |
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| Wen-Di Chen,Hai-Rui Guo,Wei-Li Sun,Tao Ye,Yang-Jun Ying,Yin-Lu Han,Qing-Biao Shen.Microscopic study of 7Li-nucleus potential[J].Chinese Physics C,2020,44(5):054109-054109-8. |
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| Authors: | Wen-Di Chen Hai-Rui Guo Wei-Li Sun Tao Ye Yang-Jun Ying Yin-Lu Han Qing-Biao Shen |
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| Institution: | 1. Graduate School of China Academy of Engineering Physics, Beijing 100088, China2. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China3. Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China |
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| Abstract: | A microscopic approach is employed to study the optical potential for the 7 Li-nucleus interaction system without any free parameters.It is obtained by folding the microscopic optical potentials of the constituent nucleons of7 Li over their density distributions.We employ an isospin-dependent nucleon microscopic optical potential,which is based on the Skyrne nucleon-nucleon effective interaction and derived using the Green's function method,as the nucleon optical potential.The harmonic oscillator shell model is used to describe the interlal wave function of 7 Li and obtain the nucleon density distribution.The7 Li microscopic optical potential is used to predict the reaction crosssections and elastic scattering angular distributions for the target range from ~(27)Al to ~(208)Pb and energy range below 450 MeV.Generally,the results can reproduce the measured data reasonably well.In addition,the microscopic optical potential is comparable to a global phenomenological optical potential by fitting the presently existing measured data. |
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| Keywords: | 7Li microscopic optical potential 7Li elastic scattering folding model |
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