节点文献

小角度范围内弱束缚核17F弹性散射微分截面的奇异行为(英文)

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

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 韩建龙王琦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

【Author】 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 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 JIN Gen-Ming REN Zhong-Zhou ZHOU Shan-Gui SERGEY Yu-Kun (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China) (Graduate .University of Chinese Academy of Sciences, Beijing 100049, China) (Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 730000, China) (Department of Physics, Nanjing University, Nanjing 210008, China) (Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China) (Centre de Ciencias Físicas, National University of Mexico (UNAM), Cuernavaca, Mexico) (Center for Nonlinear Physics, RSPhysSE, The Australian National University, Canberra ACT 0200, Australia)

【机构】 中国科学院近代物理研究所兰州重离子加速器国家实验室原子核理论中心中国科学院理论物理所Centro de Ciencias Físicas National University of Mexico (UNAM) CuernavacaMexico Center for Nonlinear PhysicsRSPhysSEThe Australian National UniversityCanberra ACT 0200Australia兰州 730000 中国科学院研究生院 北京 100049兰州 730000兰州 730000 兰州重离子加速器国家实验室原子核理论中心 兰州 730000兰州 730000 南京大学物理系 南京 210008北京 100080

【摘要】 在兰州放射性束流线(RIBLL)上完成了17F/17O+208Pb的弹性散射微分截面角分布测量.分析了17F/17O弹性散射产物微分截面的对数(ln(dσ/dθ))随散射角平方(θ2)的依赖关系.结果表明,在所测量的角度范围内(6°-20°),17O的这一依赖关系可以用一条直线很好地拟合,而17F的这一依赖关系需要两条不同斜率的直线才能拟合.17F数据拟合中的这种斜率改变可能起因于17F的奇异结构.对其他实验组数据的分析支持以上的结论,即在一定的角度范围内,弱束缚核与稳定核相比,弹性散射产物微分截面的对数与散射角平方的依赖关系有明显的差异,这可以作为深入研究“晕核”和“皮核”的一个新探针.

【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.

【关键词】 弹性散射微分截面晕核
【Key words】 elastic scatteringdifferential cross-sectionhalo nuclei
【基金】 国家自然科学基金(10475101,10535010);国家重点基础研究发展规划项目(G2000077400)资助~~
  • 【文献出处】 高能物理与核物理 ,High Energy Physics and Nuclear Physics , 编辑部邮箱 ,2006年11期
  • 【分类号】O571.4
  • 【下载频次】54
节点文献中: 

本文链接的文献网络图示:

本文的引文网络