# Criticality of QCD in a holographic QCD model with critical end point

• The thermodynamics of strongly interacting matter near the critical end point are investigated in a holographic QCD model, which can describe the QCD phase diagram in $T-\mu$ plane qualitatively. Critical exponents along different axes ( $\alpha,\beta,\gamma,\delta$ ) are extracted numerically. It is given that $\alpha\approx 0$ , $\beta\approx 0.54$ , $\gamma \approx 1.04$ , and $\delta \approx 2.97$ , which is similar to the three-dimensional Ising mean-field approximation and previous holographic QCD model calculations. We also discuss the possibilities to go beyond the mean field approximation by including the full back-reaction of the chiral dynamics in the holographic framework.

Figures(5)

Get Citation
Xun Chen, Danning Li and Mei Huang. Criticality of QCD in a holographic QCD model with critical end point[J]. Chinese Physics C. doi: 10.1088/1674-1137/43/2/023105
Xun Chen, Danning Li and Mei Huang. Criticality of QCD in a holographic QCD model with critical end point[J]. Chinese Physics C.
Milestone
Article Metric

Article Views(151)
Cited by(0)
Policy on re-use
Reuse Permission or SCOAP3
###### 通讯作者: 陈斌, bchen63@163.com
• 1.

沈阳化工大学材料科学与工程学院 沈阳 110142

Title:
Email:

## Criticality of QCD in a holographic QCD model with critical end point

• 1. Central China Normal University, Wuhan 430079, China
• 2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
• 3. Department of Physics and Siyuan Laboratory, Jinan University, Guangzhou 510632, China
• 4. University of Chinese Academy of Sciences, Beijing 100049, China
• 5. Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, Beijing 100049, China

Abstract: The thermodynamics of strongly interacting matter near the critical end point are investigated in a holographic QCD model, which can describe the QCD phase diagram in $T-\mu$ plane qualitatively. Critical exponents along different axes ( $\alpha,\beta,\gamma,\delta$ ) are extracted numerically. It is given that $\alpha\approx 0$ , $\beta\approx 0.54$ , $\gamma \approx 1.04$ , and $\delta \approx 2.97$ , which is similar to the three-dimensional Ising mean-field approximation and previous holographic QCD model calculations. We also discuss the possibilities to go beyond the mean field approximation by including the full back-reaction of the chiral dynamics in the holographic framework.

Reference (89)

/