论文标题
从底部的火球层析成像相对论重型离子碰撞中的椭圆流。
Fireball tomography from bottomonia elliptic flow in relativistic heavy-ion collisions
论文作者
论文摘要
我们计算$ \ sqrt {s _ {\ rm nn}} = 5.02 $ tev中的pb $ \，+\，$ pb碰撞中产生的底部的椭圆流。我们考虑了各种底部态状态的各向异性逃逸的温度依赖性衰减宽度，并观察到底部椭圆流的横向动量依赖性在其演变的不同阶段提供了有关QGP火球的层析成像信息。对于火球的时空演变，我们采用了3+1D Quasiparticle各向异性流体动力学模型的模拟结果。我们发现，底部椭圆流的横向动量依赖性的结果与爱丽丝和CMS协作的实验结果是合理吻合的。
We calculate the elliptic flow of bottomonia produced in Pb$\,+\,$Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV. We consider temperature-dependent decay widths for the anisotropic escape of various bottomonium states and observe that the transverse momentum dependence of bottomonia elliptic flow provides a tomographic information about the QGP fireball at different stages of its evolution. For the space-time evolution of the fireball, we employ simulation results from the 3+1D quasiparticle anisotropic hydrodynamic model. We find that our results for transverse momentum dependence of bottomonia elliptic flow are in reasonable agreement with experimental results from the ALICE and CMS collaborations.
