论文标题

夸克物质相图在具有非局部手性模型的强磁场的影响下

Quark matter phase diagram under the influence of strong magnetic fields with a nonlocal chiral model

论文作者

Carlomagno, J. P., Ferraris, S. A., Dumm, D. Gómez, Grunfeld, A. G.

论文摘要

我们在强均匀磁场$ \ vec {b} $的影响下,在$ t-μ$平面中研究夸克物质的相图,这是在两种味道polyakov nambu-jona-lasinio模型的非本地扩展的框架内。我们分析了平均场近似中的解元和手性对称恢复过渡。对于考虑的参数化,发现在$ t-μ$平面中始终有一个临界终点(CEP),该平面将一阶过渡线与平滑的交叉分开。研究CEP的位置是磁场的函数。

We study the phase diagram in the $T-μ$ plane for quark matter under the influence of a strong uniform magnetic field $\vec{B}$, in the framework of a non-local extension of the two-flavor Polyakov Nambu-Jona-Lasinio model. We analyze the deconfinement and chiral symmetry restoration transitions in the mean field approximation. For the considered parameterization, it is found that there is always a critical end point (CEP) in the $T-μ$ plane that separates a first-order transition line from a smooth crossover. The location of the CEP is studied as a function of the magnetic field.

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