| Exotic Behaviour of Angular Dispersion of Weakly Bound Nucleus ^17F at Small Angles |
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| 作者姓名： | 王琦 韩建龙 肖志刚 徐瑚珊 孙志宇 胡正国 张雪荧 王宏伟 毛瑞士 袁小华 徐治国 赵铁成 张宏斌 徐华根 祁辉荣 王玥 贾飞 武丽杰 丁先利 高启 高辉 李松林 白真 肖国青 靳根明 任中洲 周善贵 SERGEY Yu-Kun |
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| 作者单位： | [1]Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 [2]Graduate School of Chinese Academy of Sciences, Beijing 100049 [3]Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000 [4]Department of Physics, Nanjing University, Nanjing 210008 [5]Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080 [6]Centro de Ciencias Fisicas, National University of Mexico （UNAM）, Cuernavaca, Mexico [7]Center for Nonlinear Physics, RSPhysSE, The Australian National University, Canberra ACT 0200, Australia |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10475101 and 10535010, and the National Major State Basic Research and Development Programme of China under Grant No G2000077400. |
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| 摘 要： | The differential cross sections of ^17F and ^17O elastic scattering products on ^208Pb have been measured at the Radioactive Ion Beam Line at Lanzhou （RIBLL）. Two angular dispersion plots of In（ dσ/ dθ ） versus 02 are obtained from the angular distribution of the elastic scattering differential cross sections. The angular dispersion plot exhibits a clear turning point for ^17F in the range of small scattering angles 6°-2° due to its exotic structure, but for ^17O, the turning point is not observed in the same angular range. The experimental results have been compared with previous data of other groups. Systematical analysis on the available data supports the above conclusion that there is an exotic behaviour of the angular dispersion plot of weakly bound nuclei with halo or skin structure as compared with that of the ordinary nuclei near stable line. Therefore the turning point of the angular dispersion plot appears at small angle for weakly bound nuclei with halo or skin structure, and can be used as a new probe to investigate the halo and skin phenomena of weakly bound nuclei.
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| 关 键 词： | 角色散 核子 小角度 弹性散射 系统分析 |
| 收稿时间： | 2006-03-31 |
| 修稿时间： | 2006-03-31 |
Exotic Behaviour of Angular Dispersion of Weakly Bound Nucleus ^17F at Small Angles |
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| WANG Qi, HAN Jian-Long, XIAO Zhi-Gang, XU Hu-Shan, SUN Zhi-Yu, HU Zheng-Guo, ZHANG Xue-Ying, WANG Hong-Wei, MAO Rui-Shi, YUAN Xiao-Hua, XU Zhi-Guo, ZHAO Tie-Cheng, ZHANG Hong-Bin, XU Hua-Gen, QI Hui-Rong, WANG Yue, JIA Fei, WU Li-Jie, DING Xian-Li, GAO Qi, GAO Hui, LI Song-Lin, BAI Zhen, XIAO Guo-Qing, JIM Gen-Ming, REN Zhong-Zhou, ZHOU Shan-Gui.Exotic Behaviour of Angular Dispersion of Weakly Bound Nucleus ^17F at Small Angles[J].Chinese Physics Letters,2006,23(7):1731-1733. |
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| Authors: | WANG Qi HAN Jian-Long XIAO Zhi-Gang XU Hu-Shan SUN Zhi-Yu HU Zheng-Guo ZHANG Xue-Ying WANG Hong-Wei MAO Rui-Shi YUAN Xiao-Hua XU Zhi-Guo ZHAO Tie-Cheng ZHANG Hong-Bin XU Hua-Gen QI Hui-Rong WANG Yue JIA Fei WU Li-Jie DING Xian-Li GAO Qi GAO Hui LI Song-Lin BAI Zhen XIAO Guo-Qing JIM Gen-Ming REN Zhong-Zhou ZHOU Shan-Gui |
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