标题： 磁性和电性贡献在动态QCD介质中的能量损失 显示英文标题

标题： Magnetic and electric contributions to the energy loss in a dynamical QCD medium

摘要： 在具有动态成分的有限尺寸QCD介质中计算辐射能量损失是获得超高能重离子碰撞中喷注淬灭可靠预测的关键因素。 之前已经表明，与静态QCD介质相比，动态QCD介质中的能量损失要高得多。 为了理解这种差异，我们在这里分析动态QCD介质中磁和电对能量损失的贡献。 我们发现，动态情况下显著更高的能量损失完全是因为动态介质中出现了磁贡献。 虽然对于渐近高能量，静态和动态介质中的能量损失趋于相同值，但我们发现这两种情况中能量损失的物理起源是不同的。 显示英文摘要

摘要： The computation of radiative energy loss in a finite size QCD medium with dynamical constituents is a key ingredient for obtaining reliable predictions for jet quenching in ultra-relativistic heavy ion collisions. It was previously shown that energy loss in dynamical QCD medium is significantly higher compared to static QCD medium. To understand this difference, we here analyze magnetic and electric contributions to energy loss in dynamical QCD medium. We find that the significantly higher energy loss in the dynamical case is entirely due to appearance of magnetic contribution in the dynamical medium. While for asymptotically high energies, the energy loss in static and dynamical medium approach the same value, we find that the physical origin of the energy loss in these two cases is different.