BAG + HRG状态方程中QCD的phase diagram：伪临界点的出现
The phase diagram of QCD in a BAG+HRG based equation of state: appearance of a pseudo-critical point
摘要：
绘制QCD相界和确定临界端点是强相互作用物理中的一个未解决的问题。从不同的QCD激发的模型预测的临界点在$(T, μ_B)$平面的坐标显示出很大的差异。格点量子色动力学计算也是可用的，它给出了手征相变的临界点的估计，其中相变从快速交叉到一级跃迁改变其性质。最近，在Bag模型中，解禁闭相变临界点的坐标被认为是一级相变线的终点。本文证明了Bag模型在$(T, μ_B)$平面内给出一条完整的一级相变线，并且不可能有任何相变点改变其性质。
英文摘要：
Mapping the QCD phase boundary and locating critical end point still remains as an open problem in strong interaction physics. Predictions about the co-ordinates of the critical point in the $(T, μ_B)$ plane, from different QCD motivated models show a wide variation. Lattice QCD calculations are also available, that give an estimation of the critical point for chiral phase transition, where the transition changes its nature from rapid cross over to first order transition. Recently co-ordinates of the critical point for deconfinement phase transition are claimed to be found as an endpoint of the first order phase transition line, in Bag model scenario. In the present paper we have shown that Bag model gives a complete first order phase transition line in the $(T, μ_B)$ plane, and one can not have any point where the transition changes its nature.
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