华东师范大学学报（自然科学版） >

2021 , Vol. 2021 >Issue 1: 82 - 91

DOI: https://doi.org/10.3969/j.issn.1000-5641.202022007

物理学与电子学

核物质的低能有效场论研究

  • 潘廷纬 ,
  • 杨继锋
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  • 华东师范大学 物理与电子科学学院, 上海　200241

收稿日期: 2020-04-01

  网络出版日期: 2021-01-28

基金资助

国家自然科学基金(11435005)

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Low-energy effective field theory study of nuclear matter

  • Tingwei PAN ,
  • Jifeng YANG
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  • School of Physics and Electronic Science, East China Normal University, Shanghai　200241, China

Received date: 2020-04-01

  Online published: 2021-01-28

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摘要

采用低能有效场论分析了核物质和零温费米系统; 通过严格求解1S0分波Bethe-Goldstone方程(Bethe-Goldstone Equation, BGE), 得到了闭合形式的Brückner G矩阵, 并完成了其非微扰重整化. 在对理论参数的值进行选取之后, 完全了在Brückner G矩阵框架下, 分析包括密度背景中的配对问题以及费米系统单粒子能量在内的物理性质. 此外还将本文的框架和结果与其他文献进行了比较.

关键词： 有效场论; Brückner G矩阵; 重整化; 有限密度

本文引用格式

潘廷纬 , 杨继锋 . 核物质的低能有效场论研究[J]. 华东师范大学学报（自然科学版）, 2021 , 2021(1) : 82 -91 . DOI: 10.3969/j.issn.1000-5641.202022007

Abstract

In this study, the low-energy effective field theory approach is used to analyze nuclear matter and a zero-temperature Fermi system. By solving the Bethe-Goldstone equation (BGE) in the 1S0 channel, we obtain the closed-form Brückner G matrix and derive its renormalized non-perturbative form. Upon selecting values for relevant parameters, a number of physical issues are analyzed with the Brückner G matrix, such as pairing and single particle energy of a Fermi system in the density background. Lastly, the framework and results are compared with those published in the literature.

Key words： effective field theory; Brückner G matrix; renormalization; finite density

参考文献

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