Susceptibilities and the critical band of crossover region in the QCD phase diagram
文献类型：期刊论文
| 作者 | Xu, SS; Yin, PL; Zong, HS |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2019 |
| 卷号 | 79期号:5页码:399 |
| 关键词 | DYSON-SCHWINGER EQUATIONS RENORMALIZATION-GROUP MODEL |
| ISSN号 | 1434-6044 |
| DOI | 10.1140/epjc/s10052-019-6915-0 |
| 英文摘要 | The quark condensate and quark number density are commonly used to determine the QCD phase transition. However, the usually defined quark condensate is divergent in the case of non-chiral limit, and the quark number density suffers from the superficial divergence in numerical calculation. In order to address these issues, we redefine the quark condensate at finite temperature and density and propose a technique to deal with the divergence of the quark condensate and the superficial divergence of the quark number density in numerical calculations. Based on these improvements, we further discuss various susceptibilities as criteria to determine the critical points in the phase transition. It is found that different susceptibilities give different locations of the critical points in the crossover region, which suggests us to define a critical band, instead of some exclusive line in the phase diagram. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23435]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 2.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.[Xu, Shu-Sheng 5.Nanjing Univ Posts & Telecommun NJUPT, New Energy Technol Engn Lab Jiangsu Prov, Nanjing 210023, Jiangsu, Peoples R China 6.Nanjing Univ Posts & Telecommun NJUPT, Sch Sci, Nanjing 210023, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, SS,Yin, PL,Zong, HS. Susceptibilities and the critical band of crossover region in the QCD phase diagram[J]. EUROPEAN PHYSICAL JOURNAL C,2019,79(5):399. |
| APA | Xu, SS,Yin, PL,&Zong, HS.(2019).Susceptibilities and the critical band of crossover region in the QCD phase diagram.EUROPEAN PHYSICAL JOURNAL C,79(5),399. |
| MLA | Xu, SS,et al."Susceptibilities and the critical band of crossover region in the QCD phase diagram".EUROPEAN PHYSICAL JOURNAL C 79.5(2019):399. |
入库方式： OAI收割
来源：理论物理研究所
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