利用STAR BES-II数据探索夸克胶子等离子体（QGP）的电磁场效应并约束其输运参数
Exploring Electromagnetic Field Effects and Constraining Transport Parameters of QGP using STAR BES-II data
AI总结：
本研究利用STAR BES-II数据，通过测量电荷依赖直接流与流关联两类观测量，约束重离子碰撞初始状态，结合束流能量扫描揭示初始空间不对称性和电磁场下的QGP系统演化规律。
摘要：
重离子碰撞的演化经历多个阶段，区分初始阶段与末阶段效应至关重要。本研究报告了两类观测量的测量结果：（i）电荷依赖的直接流（$Δv_1$），它对初始超强电磁场敏感；（ii）流关联，包括对初始纵向去关联敏感的$r_n (η)$，以及各阶流谐波之间的关联。这些测量结果有助于约束碰撞的初始状态，通过全面的束流能量扫描，我们深入认识了存在初始空间不对称性与电磁场时的系统演化规律。
英文摘要：
Heavy-ion collisions undergo various stages in their evolution and it is crucial to disentangle the initial- and final-stage effects. In this work, we report measurements of two types of observables: (i) charge-dependent directed flow ($Δv_1$), which is sensitive to the initial ultra-strong electromagnetic fields, and (ii) flow correlations, such as $r_n (η)$ which is sensitive to the initial longitudinal de-correlation, and correlations among flow harmonics. These measurements contribute to constraining the initial state of the collisions, and through a comprehensive beam energy scan, we gain significant insights into the system evolution in the presence of initial spatial asymmetry and electromagnetic fields.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
