镜像伙伴核的电荷半径差与对称能量斜率之间的相关性*

IF 3.6 2区物理与天体物理 Q1 PHYSICS, NUCLEAR

中国物理C Pub Date : 2024-07-31 DOI:10.1088/1674-1137/ad47a8

Xiao-Rong Ma, 小荣马, Shuai Sun, 帅孙, Rong An, 荣安, Li-Gang Cao and 李刚曹

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引用次数: 0

摘要

我们建立了镜像伙伴核的电荷半径差与对称能斜率参数 L 之间的相关性，从而确定了等空间不对称核物质的状态方程。在这项工作中，基于 Skyrme 能量密度泛函理论，系统地研究了配对相关性和等速压缩模量对等速压缩模量的影响。计算结果表明，表面配对相关性降低了和 L 之间的线性相关性。从镜像对核 32Ar-32Si、36Ca-36S、38Ca-38Ar 和 54Ni-54Fe 的电荷半径差推导出的斜率参数落在 - MeV 的范围内，即相当软的非对称核物质状态方程。此外，斜率参数的范围还可能受到按不同等压不可压缩系数分类的有效作用力的影响。

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Correlation between the charge radii difference in mirror partner nuclei and thesymmetry energy slope*

A correlation between the charge radii difference of mirror partner nuclei and the slope parameter L of symmetry energy has been built to ascertain the equation of state of isospin asymmetric nuclear matter. In this work, the influences of pairing correlations and isoscalar compression modulus on the are systematically investigated based on the Skyrme energy density functional theory. The calculated results suggest that the linear correlation between and L is decreased by the surface pairing correlations. The slope parameter deduced from the difference of charge radii of mirror-pair nuclei 32Ar-32Si, 36Ca-36S, 38Ca-38Ar, and 54Ni-54Fe falls into the range of − MeV, that is, the rather soft equation of state of asymmetric nuclear matter. Besides, the range of the slope parameter can also be influenced by the effective forces classified by various isoscalar incompressibility coefficients.

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来源期刊

中国物理C 物理-物理：核物理

CiteScore

6.50

自引率

8.30%

发文量

8976

审稿时长

1.3 months

期刊介绍： Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of: Particle physics; Nuclear physics; Particle and nuclear astrophysics; Cosmology; Accelerator physics. The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication. The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal. The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.