论文标题
在热介质中，重夸克的能量损失与能量获取
Energy Loss Versus Energy Gain of Heavy Quarks in a Hot Medium
论文作者
论文摘要
我们研究热热介质中重夸克的能量损失和能量增益。这些包括研究由于极化以及与介质的热波动的相互作用而导致的能量变化。 Wong方程描述了重夸克与介质的动力学，这允许由于培养基的极化以及与Gluon场的热波动的相互作用而在重夸克上均包含在重夸克上。研究了动量以及能量损失的温度依赖性以及魅力和底部夸克的增益。我们发现，在高能量碰撞的早期阶段，在高温域中，大量的夸克能量增益主导了能量损失。这一发现支持最近观察到的重夸克会导致Glasma，并将对RHIC和LHC能量的重夸克观察物产生重大影响。
We study the energy loss and the energy gain of heavy quarks in a hot thermal medium. These include the study of the energy change due to the polarization and to the interaction with the thermal fluctuations of the medium. The dynamics of the heavy quarks with the medium is described by the Wong equations, that allow for the inclusion of both the backreaction on the heavy quarks due to the polarization of the medium, and of the interaction with the thermal fluctuations of the gluon field. Both the momentum as well as the temperature dependence of the energy loss and gain of charm and bottom quark are studied. We find that heavy quark energy gain dominate the energy loss at high-temperature domain achievable at the early stage of the high energy collisions. This finding supports the recently observed heavy quarks results in Glasma and will have a significant impact on heavy quark observables at RHIC and LHC energies.
