| 丰质子核反应中轻带电粒子发射的同位旋效应 |
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| 引用本文： | 高辉,肖国青,张丰收,高启. 丰质子核反应中轻带电粒子发射的同位旋效应[J]. 原子核物理评论, 2006, 23(3): 280-283. DOI: 10.11804/NuclPhysRev.23.03.280 |
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| 作者姓名： | 高辉 肖国青 张丰收 高启 |
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| 作者单位： | 1兰州重离子加速器国家实验室原子核理论中心,甘肃兰州730000 2中国科学院近代物理研究所,甘肃兰州7300003北京师范大学低能核物理研究所,北京100875 4中国科学院研究生院,北京100049 |
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| 基金项目： | 国家自然科学基金资助项目(10105011)~~ |
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| 摘 要： | 采用同位旋相关的Boltzmann—Langevin方程计算了核素^12-15N和^17-20Ne反应中轻带电粒子发射的同位旋效应。^12-15N与^28Si靶的反应结果显示轻带电粒子的产生截面有明显的同位旋效应，^12N的轻带电粒子产生截面突然增大，与实验得出的结论相同，由此检验了所采用的计算方法的可行性。同时还计算了^17-20Ne与^9Be靶的反应，发现^17Ne的轻带电粒子产生截面也是突然增大，并且其质子分布有较大的弥散，据此认为^17Ne可能具有晕结构。 Within the Boltzmann-Langevin equation, the isospin effects on the production cross sections of light charged particles （LCP） in the reaction of proton rich nuclei were studied. We have calculated the LCP productio n cross sections of the reaction ^12-15N ＋ ^28Si at 55 MeV/u and ^17-20Ne ＋ ^9Be at 60 MeV/u. The LCP production cross sections of ^12N increase abnormally in comparison with those of ^13-15N. The result accorded with experimental one. It also happened to ^17-20Ne. It suggests that ^17Ne is probably a proton halo nucleus.
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| 关 键 词： | 轻带电粒子 同位旋效应 产生截面 质子晕 |
| 文章编号： | 1007-4627（2006）03-0280-04 |
| 收稿时间： | 2006-02-28 |
| 修稿时间： | 2006-04-20 |
Isospin Effects on Production Cross Section of Light Charged Particles in Reaction of Proton Rich Nuclei |
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| GAO Hui,XIAO Guo-qing,ZHANG Feng-shou,GAO Qi. Isospin Effects on Production Cross Section of Light Charged Particles in Reaction of Proton Rich Nuclei[J]. Nuclear Physics Review, 2006, 23(3): 280-283. DOI: 10.11804/NuclPhysRev.23.03.280 |
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| Authors: | GAO Hui XIAO Guo-qing ZHANG Feng-shou GAO Qi |
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| Affiliation: | Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou , Lanzhou 730000, China ;2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 3.Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China; 4.Graduate School of Chinese Academy of Sciences, Beijing 100049, China) |
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| Abstract: | Within the Boltzmann-Langevin equation, the isospin effects on the production cross sections of light charged particles （LCP） in the reaction of proton rich nuclei were studied. We have calculated the LCP productio n cross sections of the reaction ^12-15N ＋ ^28Si at 55 MeV/u and ^17-20Ne ＋ ^9Be at 60 MeV/u. The LCP production cross sections of ^12N increase abnormally in comparison with those of ^13-15N. The result accorded with experimental one. It also happened to ^17-20Ne. It suggests that ^17Ne is probably a proton halo nucleus. |
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| Keywords: | light charged particle isospin effect production cross section proton halo |
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