Proper time regularization and the QCD chiral phase transition
文献类型：期刊论文
| 作者 | Cui, Zhu-Fang1,2; Zhang, Jin-Li1; Zong, Hong-Shi1,2,3 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2017-04-12 |
| 卷号 | 7页码:8 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/srep45937 |
| 通讯作者 | Cui, Zhu-Fang(phycui@nju.edu.cn) ; Zong, Hong-Shi(zonghs@nju.edu.cn) |
| 英文摘要 | We study the QCD chiral phase transition at finite temperature and finite quark chemical potential within the two flavor Nambu-Jona-Lasinio (NJL) model, where a generalization of the proper-time regularization scheme is motivated and implemented. We find that in the chiral limit the whole transition line in the phase diagram is of second order, whereas for finite quark masses a crossover is observed. Moreover, if we take into account the influence of quark condensate to the coupling strength (which also provides a possible way of how the effective coupling varies with temperature and quark chemical potential), it is found that a CEP may appear. These findings differ substantially from other NJL results which use alternative regularization schemes, some explanation and discussion are given at the end. This indicates that the regularization scheme can have a dramatic impact on the study of the QCD phase transition within the NJL model. |
| WOS关键词 | JONA-LASINIO MODEL ; DYSON-SCHWINGER EQUATIONS ; HADRON-QUARK CROSSOVER ; NJL-MODEL ; VECTOR INTERACTION ; SYMMETRY-BREAKING ; WIGNER SOLUTION ; DIAGRAM ; MATTER ; STARS |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000398969200001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/23129]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Cui, Zhu-Fang; Zong, Hong-Shi |
| 作者单位 | 1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 2.Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China 3.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Zhu-Fang,Zhang, Jin-Li,Zong, Hong-Shi. Proper time regularization and the QCD chiral phase transition[J]. SCIENTIFIC REPORTS,2017,7:8. |
| APA | Cui, Zhu-Fang,Zhang, Jin-Li,&Zong, Hong-Shi.(2017).Proper time regularization and the QCD chiral phase transition.SCIENTIFIC REPORTS,7,8. |
| MLA | Cui, Zhu-Fang,et al."Proper time regularization and the QCD chiral phase transition".SCIENTIFIC REPORTS 7(2017):8. |
入库方式： OAI收割
来源：紫金山天文台
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