标题： 200 GeV下利用各向异性流体动力学的介子干涉测量 显示英文标题

标题： Pion interferometry at 200 GeV using anisotropic hydrodynamics

摘要： 在本文中，我们继续使用3+1d各向异性流体动力学（aHydro）对重离子碰撞进行现象学研究。 在之前的工作中，我们将准粒子aHydro（aHydroQP）与ALICE 2.76 TeV Pb-Pb和RHIC 200 GeV Au-Au碰撞结果进行了比较。 在两个能量下，对于许多可观测量，aHydroQP与实验数据的吻合都非常好。 在本工作中，我们展示了利用200 GeV Au-Au碰撞中产生的pi+ pi+对确定的Hanbury Brown--Twiss（HBT）半径及其比值的比较结果。 我们首先展示了与STAR结果在HBT半径及其比值方面的比较。 然后我们展示了与PHENIX结果在HBT半径及其比值方面的比较。 在两种情况下，我们都发现aHydroQP预测与HBT半径比值的可用实验结果之间有合理的吻合。 在半径本身的层面上，某些情况下仍存在约10-20%的定量差异，这需要进一步研究。 显示英文摘要

摘要： 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.