Density-dependent potential for multi-neutron halo nuclei

We apply a simple density-dependent potential model to the three-body calculation of the ground-state structure of drip-line nuclei with a weakly bound core. The hyperspherical harmonics method is used to solve the Faddeev equations. There are no undetermined potential parameters in this calculation. We find that for the halo nuclei with a weakly-bound core, the calculated properties of the ground-state structure are in better agreement with experimental data than the results calculated from the standard Woods-Saxon and Gauss type potentials. We also successfully reproduce the experimental cross sections by using the density calculated from this method. This may be explained by the fact that the simple Fermi or Gaussian function can not exactly describe the density distribution of the drip-line nuclei.

作 者： CHEN Shuang CHU Yan-Yun REN Zhong-Zhou   作者單位： CHEN Shuang,CHU Yan-Yun(Department of Physics, Nanjing University, Nanjing 210008, China;Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210008, China)

REN Zhong-Zhou(Department of Physics, Nanjing University, Nanjing 210008, China;Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator at Lanzhou, Lanzhou 730000, China;Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210008, China) 

刊 名： 中國物理C（英文版）  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2009 33(8)  分類號(hào)： O4  關(guān)鍵詞： density-dependent   three-body model   halo nuclei  

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