论文标题
在QGP培养基中移动的重夸克的Liénard-Wiechert潜力
Liénard-Wiechert potential of a heavy quark moving in QGP medium
论文作者
论文摘要
我们研究了在热且密集的静态解质核培养基中移动的重夸克的复合潜力的性质。通过Lorentz向介质的静态框架，通过修饰静态真空康奈尔电位，将延迟电势的智能潜力概念扩展到了重夸克的背景。进一步校正真空中的产生电位，以结合热介质提供的筛选效果。为此，稳定的康奈尔电位是通过静态夸克 - 胶原等离子体（QGP）培养基的介电函数来改变的。我们介绍了电势的真实和虚构部分的数值结果，以及通过较小速度极限近似电位的分析表达。最后，我们介绍了使用电势假想部分得出的QGP介质中Quarkonia的热宽度，并研究了其对速度和温度的依赖性。
We investigate the nature of the complex retarded potential of a heavy quarkonium moving in a hot and dense static deconfined nuclear medium. The well-known concept of the retarded potential in electrodynamics is extended to the context of the heavy-quark by modifying the static vacuum Cornell potential through Lorentz transformation to the static frame of the medium. The resulting potential in the vacuum is further corrected to incorporate the screening effect offered by the thermal medium. To do so, the retarded Cornell potential is modified by the dielectric function of the static quark-gluon plasma (QGP) medium. We present the numerical results for the real and imaginary parts of the potential along with the analytical expression of the potential approximated by a small velocity limit. Finally, we present the thermal width of quarkonia in the QGP medium derived using the imaginary part of the potential and study its dependence on velocity and temperature.
