发表机构
Technical University of Munich; Institute for Advanced Study, Technische Universität München; Munich Data Science Institute, Technische Universität München（慕尼黑工业大学; 慕尼黑工业大学高等研究院; 慕尼黑工业大学慕尼黑数据科学研究所）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文用开放量子系统输运框架统一描述Pb-Pb到轻离子碰撞中的底偶素抑制，验证了其共同微观起源，并量化了对输运系数和终止温度的敏感性。
AI 中文摘要
我们使用相同的开放量子系统输运框架，测试了Pb-Pb、O-O和Ne-Ne碰撞中底偶素抑制的系统尺寸依赖性。微观输运系数沿用自先前Pb-Pb分析的结果。利用QTraj，我们在各向异性流体动力学背景中求解次领头阶pNRQCD Lindblad方程，并计算积分的$\Upsilon$双比率。QGP诱导的演化重现了CMS和LHCb测量的O-O抑制的观测顺序层次和整体幅度。我们量化了对输运系数以及介质内演化终止温度的敏感性。Ne-Ne测量倾向于比预测稍强的抑制，尽管当前实验不确定性较大。从Pb-Pb到轻离子的扩展支持了在解禁闭物质中底偶素抑制具有共同微观起源的观点，至少对于对冷核物质效应不太敏感的观测量而言，其特征是相同的温度依赖性输运系数，尽管碰撞系统尺寸发生了巨大变化。
英文摘要
We test the system-size dependence of bottomonium suppression using the same open-quantum-system transport framework for Pb-Pb, O-O, and Ne-Ne collisions. The microscopic transport coefficients are retained from previous Pb-Pb analyses. Using QTraj, we solve the next-to-leading-order pNRQCD Lindblad equation in anisotropic hydrodynamic backgrounds and calculate integrated $Υ$ double ratios. The QGP-induced evolution reproduces the observed sequential hierarchy and overall magnitude of the O-O suppression measured by CMS and LHCb. We quantify the sensitivity to both transport coefficients and to the termination temperature of the in-medium evolution. The Ne-Ne measurement favors somewhat stronger suppression than predicted, although the present experimental uncertainty is large. The extension from Pb-Pb to light ions supports, at least for observables less sensitive to cold nuclear matter effects, a common microscopic origin of bottomonium suppression in deconfined matter, characterized by the same temperature-dependent transport coefficients despite the large change in collision-system size.
Comments9 Pages, 7 figures
