Critical lensing and kurtosis near a critical point in the QCD phase diagram in and out of equilibrium
Critical lensing and kurtosis near a critical point in the QCD phase diagram in and out of equilibrium
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DOI：
10.1103/physrevd.106.094024
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发表时间：
2022-07
影响因子：
5
通讯作者：
Travis Dore;J. Karthein;Isaac Long;D. Mroczek;J. Noronha-Hostler;P. Parotto;C. Ratti;Y. Yamauchi
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文献类型：
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作者：
Travis Dore;J. Karthein;Isaac Long;D. Mroczek;J. Noronha-Hostler;P. Parotto;C. Ratti;Y. Yamauchi
在这项工作中，我们研究了量子色动力学临界点对流体动力学轨迹的透镜效应，以及它对净质子峰度的影响。包括临界行为的最佳合作状态方程（EoS）的装置，我们首先考虑的情况下，在平衡，然后比较流体动力学0+1D模拟与Bjorken膨胀，包括剪切和体积粘性条款。我们发现，无论是在平衡和不平衡，临界区域的大小和形状直接影响，如果信号将生存通过动态演化。
In this work, we study the lensing effect of the QCD critical point on hydrodynamic trajectories, and its consequences on the net-proton kurtosis $\kappa_4$. Including critical behavior by means of the BEST Collaboration equation of state (EoS), we first consider a scenario in equilibrium, then compare with hydrodynamic 0+1D simulations with Bjorken expansion, including both shear and bulk viscous terms. We find that, both in and out-of-equilibrium, the size and shape of the critical region directly affect if the signal will survive through the dynamical evolution.