Exotic Behavior of Elastic Scattering Differential Cross-Sections of Weakly Bound Nucleus 17F at Small Angles

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HAN Jian-Long, WANG Qi, XIAO Zhi-Gang, XU Hu-Shan, SUN Zhi-Yu, HU Zheng-Guo, ZHANG Xue-Yin, WANG Hong-Wei, MAO Rui-Shi, YUAN Xiao-Hua, XU Zhi-Guo, ZHAO Tie-Cheng, Exotic Behavior of Elastic Scattering Differential Cross-Sections of Weakly Bound Nucleus 17F at Small Angles[J]. Chinese Physics C, 2006, 30(11): 1058-1061.
HAN Jian-Long, WANG Qi, XIAO Zhi-Gang, XU Hu-Shan, SUN Zhi-Yu, HU Zheng-Guo, ZHANG Xue-Yin, WANG Hong-Wei, MAO Rui-Shi, YUAN Xiao-Hua, XU Zhi-Guo, ZHAO Tie-Cheng, Exotic Behavior of Elastic Scattering Differential Cross-Sections of Weakly Bound Nucleus 17F at Small Angles[J]. Chinese Physics C, 2006, 30(11): 1058-1061. shu
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Received: 2006-02-19
Revised: 2006-05-25
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Exotic Behavior of Elastic Scattering Differential Cross-Sections of Weakly Bound Nucleus 17F at Small Angles

    Corresponding author: WANG Qi,
  • Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 730000, China4 Department of Physics, Nanjing University, Nanjing 210008, China5 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China6 Centro de Ciencias F\'{\i}sicas, National University of Mexico UNAM, Cuernavaca, Mexico7 Center for Nonlinear Physics, RSPhysSE, The Australian National University, Canberra ACT 0200, Australia

Abstract: The differential cross-sections for elastic scattering of 17F and 17O on 208Pb have been measured at Radioactive Ion Beam Line at Lanzhou (RIBLL). The variation of the logarithms of differential cross-sections with the square of scattering angles shows clearly that there exists a turning point in the range of small scattering angles (6°—20°) for 17F having exotic structure, while no turning point was observed in the 17O elastic scattering. The experimental results have been compared with previous data. Systematical analysis on the available data seems to conclude that there is an exotic behavior of elastic scattering differential cross-sections of weakly bound nuclei with halo or skin structure as compared with that of the ordinary nuclei near stable line. Therefore the fact that the turning point of the logarithms of differential cross-sections appears at small angle for weakly bound nuclei could be used as a new probe to investigate the halo and skin phenomenon.

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