| 翁铭华,张振华.介子自能中的交换图对高密核物质性质的影响[J].南华大学学报(自然科学版),2016,30(2):54~58.[WENG Ming-hua,ZHANG Zhen-hua.The Effects of the Exchange Diagram in the Self-energy of Mesons on the Properties of High Density Nuclear Matter[J].Journal of University of South China(Science and Technology),2016,30(2):54~58.] |
| 介子自能中的交换图对高密核物质性质的影响 |
| The Effects of the Exchange Diagram in the Self-energy of Mesons on the Properties of High Density Nuclear Matter |
| 投稿时间：2015-12-07 |
| DOI： |
| 中文关键词: 交换图 介子的有效质量 状态方程 |
| 英文关键词:exchange diagram in-medium meson mass equation of state |
| 基金项目:国家自然科学基金资助项目(11247287;11175020;11447021) |
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| 中文摘要: |
| 基于非线性平均场模型,引入介子自能中的交换图修正,得到介子在介质中的有效质量随核物质密度的变化,且影响核子在介质中的有效质量以及高密核物质的状态方程,使得高密核物质的状态方程变软. |
| 英文摘要: |
| Based on the nonlinear mean field model,the contribution of the exchange diagram in the self-energy of mesons is introduced.This correction leads to the variation of the in-medium meson mass with respect to the nuclear matter density.It also modifies the in-medium nucleon masses and the properties of high density nuclear matter.The equation of state for high density nuclear matter is softer due to the contribution of the exchange diagram. |
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