Multi-A Hypernuclei in an Effective Hadronic Model  

作　　者：梁银花 郭华 刘玉鑫 

机构地区：[1]Department of Technical Physics, Peking University, Beijing 100871 [2]Department of Physics and the MOE Key Laboratory of Heavy Ion Physics, Peking University, Beijing 100871 [3]Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000

出　　处：《Chinese Physics Letters》2007年第8期2212-2215,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under contract Nos 10425521, 10575004, 10575005 and 10675007, the Key Project of the Ministry of Education of China under Grant No 305001, the Research Fund for the Doctoral Programme of Higher Education of China under Grant No 20040001010, and the Foundation for University Key Teachers by the Ministry of Education of China.

摘　　要：We extend the chiral hadronic model （FST） with an inclusion of A hyperon to investigate the properties of multi-A hypernuclei. With such an effective hadronic model in the relativistic mean-field approximation, we accomplish the calculations with both the conventional strong A-A interaction and the weak A-A interaction determined from recent experiment. Our calculations indicate that not only the strong but also the weak A-A interaction provide tighter binding for multi-A hypernuclei than the ones with only nucleons. However the strong interaction generates a binding slightly tighter than the weak interaction.We extend the chiral hadronic model （FST） with an inclusion of A hyperon to investigate the properties of multi-A hypernuclei. With such an effective hadronic model in the relativistic mean-field approximation, we accomplish the calculations with both the conventional strong A-A interaction and the weak A-A interaction determined from recent experiment. Our calculations indicate that not only the strong but also the weak A-A interaction provide tighter binding for multi-A hypernuclei than the ones with only nucleons. However the strong interaction generates a binding slightly tighter than the weak interaction.

分 类 号：O57[理学—粒子物理与原子核物理]