摘要
本文在分析构成_Λ~5He的过紧束缚问题因素的基础上,对壳心核~4He的波函数作适当的调整,以现有的Λ-N相互作用势做计算,所给出的_Λ~5He基态的Λ超子结合能理论值与实验值大致相符.由此,_Λ~5He的过紧束缚问题可能得到解释.
In this paper, based upon analysing the various factors which might cause the overbinding of _∧~5He, we make a proper adjustment for the wave function of the core.nucleus ~4He. With the adjusted core wave function and various ∧-N interactions, we calculate the ∧-hyperon binding energy B_∧(_∧~5He) of the _∧~5He ground state and obtain a reasonable agreement between the theoretical and experimental values of B_∧(_∧~5He). Thus, the 5 ∧ He overbinding problem could be explained.
出处
《高能物理与核物理》
CSCD
北大核心
1989年第9期814-821,共8页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
