标题： 微型喷注淬火在非平衡夸克-胶子等离子体中 显示英文标题

标题： Minijet quenching in non-equilibrium quark-gluon plasma

摘要： 我们使用QCD动力学理论研究高动量在壳部分子（小喷注）在非平衡夸克-胶子等离子体中的能量沉积和热化过程。 对于热背景，我们表明部分子的能量首先通过共线级联流向软区，然后通过弹性散射各向同性化。 相反，小喷注的动量沉积直接达到平衡分布。 对于膨胀的非平衡QGP，我们研究了小喷注扰动失去其初始条件记忆的时间，即流体力学化时间。 我们表明小喷注的演化与弛豫时间${\tau}_R \propto {\eta}/s/T ({\tau} )$有很好的比例关系，其中$T ({\tau} )$是有效温度，${\eta}/s$是粘度与熵密度比值。 显示英文摘要

摘要： We study the energy deposition and thermalisation of high-momentum on-shell partons (minijets) travelling through a non-equilibrium Quark-Gluon Plasma using QCD kinetic theory. For thermal backgrounds, we show that the parton energy first flows to the soft sector by collinear cascade and then isotropises via elastic scatterings. In contrast, the momentum deposition from a minijet reaches the equilibrium distribution directly. For expanding non-equilibrium QGP, we study the time for a minijet perturbation to lose memory of its initial conditions, namely, the hydrodynamisation time. We show that the minijet evolution scales well with the relaxation time ${\tau}_R \propto {\eta}/s/T ({\tau} )$, where $T ({\tau} )$ is the effective temperature and ${\eta}/s$ is the viscosity over entropy ratio.