标题： 初始涨落对高能重离子碰撞中谐波流的影响 显示英文标题

标题： Initial fluctuation effect on harmonic flow in high-energy heavy-ion collisions

摘要： 在多相输运模型的框架下，研究了金-金碰撞在$\sqrt{s_{NN}}$ = 200 GeV 和铅-铅碰撞在$\sqrt{s_{NN}}$ = 2.76 TeV 下的谐流$v_n$ (n = 2, 3 和 4)。 事件级几何涨落对谐流有显著贡献。 三角形流 ($v_3$) 源于初始三角性 ($\epsilon_3$) 并通过部分子相互作用发展而来。 转换效率 ($v_n/\epsilon_n$) 随谐波阶数增加而减小，并随部分子相互作用截面增大而增加。 在低$p_T$区域的质量排序和中间$p_T$区域的组成夸克标度似乎大致适用于两种能量下的$n$次谐波流。 所有谐波流的特征在RHIC和LHC能量下表现出相似的定性行为，这表明在两种能量下形成的部分子物质是相似的。 显示英文摘要

摘要： Within the framework of a multi-phase transport model, harmonic flows $v_n$ (n = 2, 3 and 4) are investigated for Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV. The event-by-event geometry fluctuations significantly contribute to harmonic flows. Triangular flow ($v_3$) originates from initial triangularity ($\epsilon_3$) and is developed by partonic interactions. The conversion efficiency ($v_n/\epsilon_n$) decreases with harmonic order and increases with partonic interaction cross section. A mass ordering in the low $p_T$ region and number of constitute quark scaling in the middle $p_T$ region seem to work roughly for $n$-th harmonic flows at both energies. All features of harmonic flows show similar qualitative behaviors at RHIC and LHC energies, which implies that the formed partonic matters are similar at the two energies.