Locating the QCD critical end point through peaked baryon number susceptibilities along the freeze-out line
文献类型：期刊论文
| 作者 | Li ZB(李志镔); Chen YD(陈亦点) ; Huang M(黄梅); Li, ZB; Chen, YD; Li, DN; Huang, M
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| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2018 |
| 卷号 | 42期号:1页码:53001 |
| 关键词 | QCD baryon number susceptibilities critical end point phase transition |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/42/1/013103 |
| 文献子类 | Article |
| 英文摘要 | We investigate the baryon number susceptibilities up to fourth order along different freeze-out lines in a holographic QCD model with a critical end point (CEP), and we propose that the peaked baryon number susceptibilities along the freeze-out line can be used as a clean signature to locate the CEP in the QCD phase diagram. On the temperature and baryon chemical potential plane, the cumulant ratio of the baryon number susceptibilities (up to fourth order) forms a ridge along the phase boundary, and develops a sword-shaped "mountain" standing upright around the CEP in a narrow and oblate region. The measurement of baryon number susceptibilities from heavy-ion collision experiments is along the freeze-out line. If the freeze-out line crosses the foot of the CEP mountain, then one can observe the peaked baryon number susceptibilities along the freeze-out line, and the kurtosis of the baryon number distributions has the highest magnitude. The data from the first phase of the beam energy scan program at the Relativistic Heavy Ion Collider indicates that there should be a peak of the kurtosis of the baryon number distribution at a collision energy of around 5 GeV, which suggests that the freeze-out line crosses the foot of the CEP mountain and the summit of the CEP should be located nearby, around a collision energy of 3-7 GeV. |
| 电子版国际标准刊号 | 2058-6132 |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6153568 |
| WOS记录号 | WOS:000423839100005 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285588]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Li ZB,Chen YD,Huang M,et al. Locating the QCD critical end point through peaked baryon number susceptibilities along the freeze-out line[J]. CHINESE PHYSICS C,2018,42(1):53001. |
| APA | 李志镔.,陈亦点.,黄梅.,Li, ZB.,Chen, YD.,...&Huang, M.(2018).Locating the QCD critical end point through peaked baryon number susceptibilities along the freeze-out line.CHINESE PHYSICS C,42(1),53001. |
| MLA | 李志镔,et al."Locating the QCD critical end point through peaked baryon number susceptibilities along the freeze-out line".CHINESE PHYSICS C 42.1(2018):53001. |
入库方式： OAI收割
来源：高能物理研究所
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