Proper time regularization and the QCD chiral phase transition
文献类型：期刊论文
| 作者 | Cui, ZF; Zhang, JL; Zong, HS; Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zong, HS (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.; Zong, HS (reprint author), Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China. |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2017 |
| 卷号 | 7页码:45937 |
| DOI | http://dx.doi.org/10.1038/srep45937 |
| 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. |
| 学科主题 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22081]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Cui, ZF; Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zong, HS (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.; Zong, HS (reprint author), Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cui, ZF,Zhang, JL,Zong, HS,et al. Proper time regularization and the QCD chiral phase transition[J]. SCIENTIFIC REPORTS,2017,7:45937. |
| APA | Cui, ZF,Zhang, JL,Zong, HS,Zong, HS ,Zong, HS ,&Zong, HS .(2017).Proper time regularization and the QCD chiral phase transition.SCIENTIFIC REPORTS,7,45937. |
| MLA | Cui, ZF,et al."Proper time regularization and the QCD chiral phase transition".SCIENTIFIC REPORTS 7(2017):45937. |
入库方式： OAI收割
来源：理论物理研究所
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