论文标题
通过使用颜色字符串渗透模型的魅力夸克扩散来了解QCD介质
Understanding the QCD medium by the diffusion of charm quarks using a Color String Percolation Model
论文作者
论文摘要
我们通过采用颜色弦线渗透模型（CSPM）方法来研究在超偏见碰撞中产生的魅力夸克的阻力和扩散系数。 CSPM是一种受QCD启发的模型，可以为我们提供有关超相关碰撞中产生的热和密集系统的基本信息。有了有关初始渗透温度和渗透密度的信息，我们估计放松时间（$τ_{C} $），阻力系数（$γ$），横向动量扩散系数（$ b_ {0} $），以及空间扩散系数（$ d_ {s} $）的carem confine deconfine deconfine deconfine deconfine deconfinefinefinefinefinefciend deconfinefinfinefinfinefciend deconfinefcard condefcard cornfinefcard condefcard condefcard condefcard condefcard condefcinf condefcard。最后，我们将获得的结果与晶格QCD和其他各种理论模型进行了比较。从CSPM和晶格QCD获得的结果之间可以观察到良好的一致性。
We study the drag and diffusion coefficients of the charm quark in the deconfined matter produced in the ultra-relativistic collisions by taking the Color String Percolation Model (CSPM) approach. CSPM, being a QCD-inspired model, can give us essential information about the hot and dense system produced in ultra-relativistic collisions. With the information on initial percolation temperature and percolation density, we estimate the relaxation time ($τ_{c}$), drag coefficient ($γ$), transverse momentum diffusion coefficient ($B_{0}$), and spatial diffusion coefficient ($D_{s}$) of charm quark inside a deconfined medium. Finally, we compare the obtained results with lattice QCD and with various other theoretical models. A good agreement can be observed between the results obtained from CSPM and lattice QCD.
