Nuclear modification factor and flow of charm and bottom quarks in Au+Au collisions at sNN=200GeV by the PHENIX Experiment
Nuclear modification factor and flow of charm and bottom quarks in Au+Au collisions at sNN=200GeV by the PHENIX Experiment
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DOI：
10.1016/j.nuclphysa.2018.10.054
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发表时间：
2019-02
影响因子：
1.4
通讯作者：
T. Hachiya
中科院分区：
文献类型：
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作者：
T. Hachiya
RHIC 和 LHC 的实验结果表明，在高 P-T 下对轻夸克和重夸克探针有类似的强烈抑制，而在低 P-T 下抑制可能依赖于夸克质量。需要对分离的粲和底进行更高精度的测量，以量化介质效应对夸克质量的依赖性。 PHENIX 实验使用中速垂直条 y 垂直条 <0.35 处的位移顶点分布测量了来自底部的分离电子和魅力衰变。分离粲衰变和底衰变电子的方位各向异性是从 2014 年采集的 Au+Au 高统计数据中获得的。PHENIX 还以正向速度测量 d+Au 碰撞中重夸克衰变的 μ 子，以研究小系统中重味产生的集体影响。这些程序报告了最小偏压 Au+Au 碰撞中的粲和底部在中速时的方位各向异性，以及 d+Au 碰撞中重夸克衰变产生的单 μ 子的各向异性。
Experimental results at RHIC and at the LHC show a similar strong suppression for light and heavy quark probes at high P-T, and a possible quark mass dependence of suppression at low P-T. More high precision measurements of separated charm and bottom are needed to quantify the dependence of medium effects on the quark mass. The PHENIX experiment measured separated electrons from bottom and charm decays using displaced vertex distributions at mid-rapidity vertical bar y vertical bar <0.35. Azimuthal anisotropy of electrons from separated charm and bottom decays are obtained from high statistics Au+Au data taken in 2014. PHENIX also measures muons from heavy quark decays in d+Au collisions at forward rapidity to study collective effects on heavy flavor production in small systems. These proceedings report the azimuthal anisotropy of charm and bottom at mid-rapidity in minimum bias Au+Au collisions and the anisotropy of single muons from heavy quark decays in d+Au collisions.