The Pionic Effect on the Binding Energy of Relativistic Particle-Hole Excitation in Nuclear Matter

• 来源期刊: 原子核物理：英文版
• 学科: 物理学
• 关键词: Relativistic σ-ω-(?) model Nucleon SELF-ENERGY Pionic EFFECT Particle-hole EXCITATION Exchange and correlation energy
• 年，卷（期）: 1997,（3）
• 页码范围: 133-141
• 页数: 9页
• 分类号: O4

摘要

【正】 The renormalization of pion-exchange nucleon self-energy in nuclear matter is doneby dispersion relation.The exchange and correlation energies(in the ring approximation)ofpion,σ and ω mesons are derived and used to calculate the binding energy of nuctear matter atzero temperature.We find that the pionic contribution to the binding energy fails to lift the highdensity end of the binding energy curve,that is,the binding energy can not saturate without adensity dependent correction to the σNN and ωNN coupling constants.But the binding energycan saturate in the relativistic Hartree approximation plus the exchange and correlation energiesof л meson.