We develop a flexible, relativistically covariant parametrization of the dense nuclear matter equation of state suited for inclusion in computationally demanding hadronic transport simulations. Within an implementation in the hadronic transport code smash, we show that effects due to bulk thermodynamic behavior are reproduced in dynamic hadronic systems, demonstrating that hadronic transport can be used to study critical behavior in dense nuclear matter, both at and away from equilibrium. We also show that two-particle correlations calculated from hadronic transport simulation data follow theoretical expectations based on the second-order cumulant ratio, and constitute a clear signature of the crossover region above the critical point.

中文翻译：

---

具有相对论密度函数状态方程的强子输运中的相变和临界行为

我们开发了一种灵活的、相对论协变的稠密核物质状态方程参数化，适用于包含在计算要求高的强子输运模拟中。在强子传输代码smash 的一个实现中，我们展示了由于体积热力学行为引起的效应在动态强子系统中重现，证明强子传输可用于研究稠密核物质中的临界行为，无论是处于平衡状态还是远离平衡状态。我们还表明，根据强子输运模拟数据计算出的双粒子相关性符合基于二阶累积量比的理论预期，并构成了临界点上方交叉区域的清晰特征。