arXiv 1809.092472018-09-24hep-exnucl-ex

在RHIC的PHENIX的能量和系统尺寸依赖的重口味测量

Energy and system size dependent heavy flavor measurements at PHENIX at RHIC

Xuan Li

备注：: Talk presented at CIPANP2018, 8 pages, 9 figures

摘要：

重味产生是研究夸克-胶子等离子体（QGP）性质的理想工具。相对论重离子对撞机（RHIC）的重味产生有其独特的运动学覆盖范围和不同于大型强子对撞机（LHC）测量的产生机制。在重离子碰撞中产生的重味产物经历了核介质的整个演化过程。在不同的碰撞系统中测量开放和封闭的重味产物以隔离冷/热核介质效应和初/终态相互作用是至关重要的。报道了PHENIX实验室最近在200 GeV $p$ + $p$、$p$ +Al、$p$ +Au、$^{3}$ He+Au和Au+Au碰撞中的重味测量结果，包括：200 GeV $p$ + $p$和$p$ +Au碰撞中的相关双μ子分析，非对称小系统中的快度和$N_{part}$依赖的$J/ψ$ $R_{AB}$测量;在200 GeV的d+Au和Au+Au碰撞中测量的开放重味$v_{2}$。这些测量结果为QGP中重味产生机制、初态和终态核修饰以及味相关的能量损失提供了进一步的信息。

英文摘要：

Heavy flavor production is an ideal tool to study the properties of the Quark Gluon Plasma (QGP). The heavy flavor production at the Relativistic Heavy Ion Collider (RHIC) has its unique kinematic coverage and different production mechanisms from the Larger Hadron Collider (LHC) measurements. Heavy flavor products created in heavy ion collisions experience the whole evolution of nuclear medium. It's critical to measure both open and closed heavy flavor products in different collision systems to isolate cold/hot nuclear medium effects and initial/final state interactions. We report recent heavy flavor measurements at PHENIX in 200 GeV $p$+$p$, $p$+Al, $p$+Au, $^{3}$He+Au and Au+Au collisions that include: the correlated di-muon analysis in 200 GeV $p$+$p$ and $p$+Au collisions; the rapidity and $N_{part}$ dependent $J/ψ$ $R_{AB}$ measured in asymmetric small systems; open heavy flavor $v_{2}$ measured in 200 GeV d+Au and Au+Au collisions. These measurements provide further information about the heavy flavor production mechanism, initial and final state nuclear modification and flavor dependent energy loss in QGP.

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英文摘要：

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