论文标题
中等诱导的碎片和高能部分的平衡
Medium-induced fragmentation and equilibration of highly energetic partons
论文作者
论文摘要
我们研究了QCD介质内高能颗粒/喷气机的能量损失和平衡。 Based on an effective kinetic description of QCD, including $2\leftrightarrow 2$ elastic processes, radiative $1\leftrightarrow 2$ processes, as well as the back-reaction of jet constituents onto the thermal medium, we describe the in-medium evolution of jets from the energy scale of the jet $\sim E$ all the way to the medium scale $\sim T $.虽然弹性过程和后反应对于描述射流的软片段的平衡很重要，但我们发现，由于连续的辐射分支，能量损失由反湍流的级联反向支配，这对喷气片段的能量光谱和化学具有有趣的含义。
We investigate the energy loss and equilibration of highly energetic particles/jets inside a QCD medium. Based on an effective kinetic description of QCD, including $2\leftrightarrow 2$ elastic processes, radiative $1\leftrightarrow 2$ processes, as well as the back-reaction of jet constituents onto the thermal medium, we describe the in-medium evolution of jets from the energy scale of the jet $\sim E$ all the way to the medium scale $\sim T $. While elastic processes and back-reaction are important to describe the equilibration of soft fragments of the jet, we find that the energy loss is dominated by an inverse turbulent cascade due to successive radiative branchings, which has interesting implications for the energy spectra and chemistry of jet fragments.
