Critical parameters of the liquid-gas phase transition in thermal symmetric and asymmetric nuclear matter
文献类型：期刊论文
| 作者 | Yang, Shen1,2; Zhang, Bo Nan1; Sun, Bao Yuan1 |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2019-11-11 |
| 卷号 | 100期号:5页码:12 |
| ISSN号 | 2469-9985 |
| DOI | 10.1103/PhysRevC.100.054314 |
| 通讯作者 | Sun, Bao Yuan(sunby@lzu.edu.cn) |
| 英文摘要 | The properties of critical parameters and phase diagram structure of liquid-gas phase transition are investigated in thermal symmetric and asymmetric nuclear matter with the covariant density functional (CDF) theory. Although uncertainty remains in predicting the critical parameters such as the critical temperature and pressure from various CDF functionals, several strongly correlated features are proposed among these quantities. These correlations become worse when nuclear matter is more isospin asymmetric, resulting mainly from the effects induced by the symmetry energy. By looking over the isospin dependence of the critical temperature, the role of the symmetry energy in liquid-gas transition properties of asymmetric matter is realized. The change of critical temperature with isospin asymmetry is found to be correlated well with, and as a consequence could be constrained by, the density slope of symmetry energy at saturation density. Then, the structure of phase diagram of thermal nuclear matter is analyzed carefully. It is revealed that the contribution from symmetry energy dominates the size of liquid-gas phase coexistence area. Moreover, the specific pattern of the phase diagram could be determined by the critical temperature at nonzero isospin asymmetry as illustrated from the correlations of the temperature with pressures at several characteristic points, paving the possible way to further explore the structure of liquid-gas phase diagram of thermal nuclear matter. |
| WOS关键词 | EQUATION-OF-STATE ; HARTREE-BOGOLIUBOV THEORY ; NEUTRON-RICH NUCLEI ; MEAN-FIELD THEORY ; UNSTABLE NUCLEI ; DENSITY ; HOT ; ISOSPIN ; PHYSICS ; MODELS |
| 资助项目 | National Natural Science Foundation of China[11875152] ; National Natural Science Foundation of China[11675065] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000495968600002 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/141609]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Sun, Bao Yuan |
| 作者单位 | 1.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shen,Zhang, Bo Nan,Sun, Bao Yuan. Critical parameters of the liquid-gas phase transition in thermal symmetric and asymmetric nuclear matter[J]. PHYSICAL REVIEW C,2019,100(5):12. |
| APA | Yang, Shen,Zhang, Bo Nan,&Sun, Bao Yuan.(2019).Critical parameters of the liquid-gas phase transition in thermal symmetric and asymmetric nuclear matter.PHYSICAL REVIEW C,100(5),12. |
| MLA | Yang, Shen,et al."Critical parameters of the liquid-gas phase transition in thermal symmetric and asymmetric nuclear matter".PHYSICAL REVIEW C 100.5(2019):12. |
入库方式： OAI收割
来源：近代物理研究所
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