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Criticality of QCD in a holographic QCD model with critical end point
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Criticality of QCD in a holographic QCD model with critical end point
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Thermodynamics of strongly interacting matter near critical end point are investigated in a holographic QCD model, which could describe the QCD phase diagram in $T-\mu$ plane qualitatively. Critical exponents along different axis ($\alpha,\beta,\gamma,\delta$) are extracted numerically. It is given that $\alpha\approx 0, \beta\approx 0.54, \gamma \approx 1.04, \delta \approx 3.0$, the same as 3D Ising mean-field approximation and previous holographic QCD model calculations. We also discuss the possibilities to go beyond mean field approximation by including the full back-reaction of chiral dynamics in the holographic framework.
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