论文标题
使用各向异性流体力学在200 GEV处进行触发干涉法
Pion interferometry at 200 GeV using anisotropic hydrodynamics
论文作者
论文摘要
在本文中，我们使用3+1D各向异性流体动力学（AHYDRO）继续对重离子碰撞进行现象学研究。在以前的作品中，我们将Quasiparticle Ahydro（AhydroQP）与爱丽丝2.76 TEV PB-PB和RHIC 200 GEV AU-AU碰撞结果进行了比较。在这两个能量上，对于许多可观察到的AHYDROQP和实验数据之间的协议都相当不错。在这项工作中，我们介绍了汉伯里·布朗（HANBROWN-TWISS（HBT）半径的比较及其使用Pi+ Pi+ Piairs在200 GEV Au-Au碰撞中产生的比率。我们首先对HBT半径及其比率进行了比较。然后，我们与HBT半径及其比率进行了比较。在这两种情况下，我们都发现AHYDROQP预测与HBT半径比率的可用实验结果之间有合理的一致性。在半径本身的水平上，在某些情况下，仍然存在10-20％阶的定量差异，这值得进一步研究。
In this paper, we continue our phenomenological studies of heavy-ion collisions using 3+1d anisotropic hydrodynamics (aHydro). In previous works, we compared quasiparticle aHydro (aHydroQP) with ALICE 2.76 TeV Pb-Pb and RHIC 200 GeV Au-Au collision results. At both energies, the agreement was quite good between aHydroQP and the experimental data for many observables. In this work, we present comparisons of the Hanbury Brown--Twiss (HBT) radii and their ratios determined using pi+ pi+ pairs produced in 200 GeV Au-Au collisions. We first present comparisons with STAR results for the HBT radii and their ratios. We then present comparisons with PHENIX results for the HBT radii and their ratios. In both cases, we find reasonable agreement between aHydroQP predictions and available experimental results for the ratios of HBT radii. At the level of the radii themselves, in some cases quantitative differences on the order of 10-20% remain, which deserve further study.
