| 用电子散射研究丰质子核的质子晕结构 |
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| 引用本文： | 王再军,任中洲.用电子散射研究丰质子核的质子晕结构[J].中国物理 C,2005,29(3):245-249. |
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| 作者姓名： | 王再军 任中洲 |
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| 作者单位： | 南京大学物理系，南京大学物理系 南京210008，南京210008，兰州重离子加速器国家实验室原子核理论中心兰州730000 |
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| 基金项目： | 国家杰出青年基金(10125521),教育部博士点基金(20010284036),国家重点基础研究发展规划项目(G2000077400),中国科学院创新工程重点项目(KJCX2-SW-No2)资助 |
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| 摘 要： | 理论和实验结果都表明17F的第一激发态有质子晕存在.用相对论平均场理论和Eikonal近似研究了质子晕核17F的第一激发态的电子弹性散射过程. 计算了17F的第一激发态的电荷形状因子,并与16O和19F的结果进行了对比和讨论.结果显示质子晕的存在会使中等转移动量的电荷形状因子产生明显的变化,并且使低转移动量的电荷形状因子趋于降低.这说明电子散射对质子晕的存在是非常敏感的,表明可以用电子散射对奇特核的质子晕结构进行更精细的研究.
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| 关 键 词： | 电子弹性散射 质子晕 Eikonal近似 相对论平均场理论 |
| 收稿时间： | 2004-7-30 |
Studies on Proton-Halo Structure of Light Proton-Rich Nuclei by Elastic Electron-Nucleus Scattering |
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| WANG Zai-Jun REN Zhong-Zhou ,.Studies on Proton-Halo Structure of Light Proton-Rich Nuclei by Elastic Electron-Nucleus Scattering[J].High Energy Physics and Nuclear Physics,2005,29(3):245-249. |
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| Authors: | WANG Zai-Jun REN Zhong-Zhou |
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| Institution: | WANG Zai-Jun 1 REN Zhong-Zhou 1,2,1) 1 |
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| Abstract: | Both theoretical calculations and experimental observations show that there exists proton halo in the first excited state (1/2) of 17 F. The elastic electron scattering process on the first excited state of 17 F is studied with the RMF model and Eikonal approximation. The charge form factor is calculated and compared with those of 16 O and 19 F. The results show that the existence of the proton halo can lead to an obvious change of the form factors in the range of low and moderatemomentum transfer. This indicates that elastic electron-nucleus scattering can be an effective tool for a refined study of the proton-halo structure of proton-rich nuclei. |
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| Keywords: | elastic electron scattering proton halo Eikonal approximation relativistic mean field theory |
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