从氢到喷注淬灭、并合和强子级联：解$R_{AA}\otimes v_2$之谜的耦合方法
From hydro to jet quenching, coalescence and hadron cascade: a coupled approach to solving the $R_{AA}\otimes v_2$ puzzle
摘要：
流体动力学和喷注猝灭分别是导致椭圆流$v_2$和大横动量（$p_T$）强子被抑制的两个最重要的现象，这两个现象导致了高能重离子碰撞中强耦合夸克-胶子等离子体（QGP）的发现。然而，强子抑制因子$R_{AA}$和$v_2$的一致描述，特别是在中间$p_T$，仍然是一个挑战。我们解决了这个长期存在的$R_{AA}\otimes v_2$难题，包括夸克凝聚强子化和末态强子级联的耦合线性玻尔兹曼输运流体模型，结合并发喷流输运和流体动力学演化的散装介质。我们说明夸克聚并和强子级联这两个解开这个谜的关键，也导致了$p_T$中间区的π子、K介子和质子的$v_2$分裂。我们首次证明，实验数据$R_{AA}$，$v_2$和它们的强子味依赖从低到中，高$p_T$在高能重离子碰撞中可以理解在这个耦合的框架。
英文摘要：
Hydrodynamics and jet quenching are responsible for the elliptic flow $v_2$ and suppression of large transverse momentum ($p_T$) hadrons, respectively, two of the most important phenomena leading to the discovery of a strongly coupled quark-gluon plasma (QGP) in high-energy heavy-ion collisions. A consistent description of the hadron suppression factor $R_{AA}$ and $v_2$, especially at intermediate $p_T$, however, remains a challenge. We solve this long-standing $R_{AA}\otimes v_2$ puzzle by including quark coalescence for hadronization and final state hadron cascade in the coupled linear Boltzmann transport-hydro model that combines concurrent jet transport and hydrodynamic evolution of the bulk medium. We illustrate that quark coalescence and hadron cascade, two keys to solving the puzzle, also lead to a splitting of $v_2$ for pions, kaons and protons in the intermediate $p_T$ region. We demonstrate for the first time that experimental data on $R_{AA}$, $v_2$ and their hadron flavor dependence from low to intermediate and high $p_T$ in high-energy heavy-ion collisions can be understood within this coupled framework.
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。
