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Exotic Behaviour of Angular Dispersion of Weakly Bound Nucleus 17F at Small Angles |
| WANG Qi1;HAN Jian-Long1,2;XIAO Zhi-Gang1;XU Hu-Shan1;SUN Zhi-Yu1;HU Zheng-Guo1,2;ZHANG Xue-Ying1,2;WANG Hong-Wei1;
MAO Rui-Shi1;YUAN Xiao-Hua1,2;XU Zhi-Guo1;ZHAO Tie-Cheng1;ZHANG Hong-Bin1;XU Hua-Gen1,2;QI Hui-Rong1,2;WANG Yue1,2;JIA Fei1,2;WU Li-Jie1,2;DING Xian-Li1,2;GAO Qi1,2;GAO Hui1,2;LI Song-Lin1;BAI Zhen1,2;XIAO Guo-Qing1;JIN Gen-Ming1,3;REN Zhong-Zhou3,4;ZHOU Shan-Gui5;SERGEY Yu-Kun6,7 |
| 1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Graduate School of Chinese Academy of Sciences, Beijing 100049
3Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000
4Department of Physics, Nanjing University, Nanjing 210008
5Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
6Centro de Ciencias Fisicas, National University of Mexico (UNAM), Cuernavaca, Mexico
7Center for Nonlinear Physics, RSPhysSE, The Australian National University, Canberra ACT 0200, Australia |
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| Cite this article: |
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WANG Qi, HAN Jian-Long, XIAO Zhi-Gang et al 2006 Chin. Phys. Lett. 23 1731-1733 |
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Abstract 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 ln(dσ/dθ) versus θ2 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--20° 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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| Keywords:
25.60.Bx
25.60.Dz
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Published: 01 July 2006
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| PACS: |
25.60.Bx
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(Elastic scattering)
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25.60.Dz
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(Interaction and reaction cross sections)
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