Multi-Λ Hypernuclei in an Effective Hadronic Model

• 来源期刊: 中国物理快报(英文版)
• 年，卷（期）: 2007,（8）
• 页码范围: 2212-2215
• 页数: 4页
• 语种: 英文

摘要

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