标题： 基于输运的有限密度下重离子碰撞初始条件 显示英文标题

标题： Transport-based initial conditions for heavy-ion collisions at finite densities

摘要： 我们使用SMASH输运模型为相对论重离子碰撞的流体动力学模拟中的能量-动量张量和守恒电荷电流提供逐事件的初始条件。 我们研究了三种守恒电荷电流（净重子数、净电荷和净奇异数）在流体动力学阶段的涨落和动态演化，采用基于4D格点QCD的状态方程NEOS-4D。 在粒子化时的非平衡修正被推广到有限密度，以确保能量、动量和三种电荷的守恒。 这些理论发展被整合到X-SCAPE中，作为一个统一的框架，用于研究束能扫描计划中的核物质性质。 显示英文摘要

摘要： We employ the SMASH transport model to provide event-by-event initial conditions for the energy-momentum tensor and conserved charge currents in hydrodynamic simulations of relativistic heavy-ion collisions. We study the fluctuations and dynamical evolution of three conserved charge currents (net baryon, net electric charges, and net strangeness) with a 4D lattice-QCD-based equation of state, NEOS-4D, in the hydrodynamic phase. Out-of-equilibrium corrections at the particlization are generalized to finite densities to ensure the conservation of energy, momentum, and the three types of charges. These theoretical developments are integrated within X-SCAPE as a unified framework for studying the nuclear matter properties in the Beam Energy Scan program.