论文标题
从组成型准颗粒模型的分布和相关函数获得的夸克 - 胶质等离子体的筛选特性
Screening properties of quark-gluon plasma obtained from distribution and correlation functions of the constituent quasiparticle model
论文作者
论文摘要
基于Quark-Gluon等离子体（QGP）的成分准粒子模型，密度运算符的矩阵元素和颜色相空间中的Wigner函数以Wiener和SU（3）组HAAR测量的颜色路径积分的形式表示。在零巴里昂化学势下，在热平衡中，对QGP等离子体的QGP等离子体进行了强烈耦合的QGP血浆，对夸克和Gluon动量分布和空间对分布函数的蒙特卡洛计算进行了计算。 Debye筛选质量和运行耦合常数是从空间对分布函数中获得的，并且与可用的晶格QCD数据一致。在与平均颗粒间距离相关的密度下，已发现Gluon结合状态以粘合球的形式被发现。与Maxwell Boltzmann分布的比较显示，颗粒间相互作用对动量分布函数的高能量渐近性的显着影响，从而导致量子尾部的出现。已经引入了新的颜色对相关函数，并讨论了相关的新颜色筛选质量。
Based on the constituent quasiparticle model of quark-gluon plasma (QGP), the matrix elements of the density operator and the Wigner function in the color phase space are presented in form of color path integrals over Wiener and SU(3) group Haar measures. Monte Carlo calculations of quark and gluon momentum distributions and spatial pair distribution functions have been carried out for the strongly coupled QGP plasma in thermal equilibrium at zero baryon chemical potential. The Debye screening mass and the running coupling constant have been obtained from the spatial pair distribution function and are in agreement with the available lattice QCD data. At densities related to the average interparticle distance more than 0.4 fm the gluon bound states in the form of glueballs have been found. Comparison with the Maxwell Boltzmann distribution shows significant influence of interparticle interaction on high energy asymptotics of the momentum distribution functions, resulting in appearance of quantum tails. The new color pair correlation function has been introduced, and related new color screening mass has been discussed.
