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Screening properties of quark-gluon plasma obtained from distribution and correlation functions of the constituent quasiparticle model

机译:从组成Quasiparticle模型的分布和相关函数获得Quark-Gluon等离子体的筛选性能

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摘要

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 glue balls 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.
机译:基于夸克 - 胶质等离子体(QGP)的组成Quasiplicle模型,密度操作员的矩阵元件和色相空间中的Wigner函数以维纳和SU(3)组Haar测量的色盲积分形式呈现。在零Baryon化学潜力下,已经对ZHGP QGP等离子体中的强耦合的QGP等离子体进行了ZHARK和GLUON动量分布和空间对分布功能的蒙特卡罗计算。已经从空间对分布函数获得了DeBye筛选质量和运行耦合常数,并且与可用的格子QCD数据一致。在与平均颈部距离相关的密度,已经发现了胶球形式的Gluon绑定状态。与Maxwell-Boltzmann分布的比较显示出颗粒间相互作用对动量分布函数的高能渐近学的影响,导致量子尾部的外观。已经介绍了新的颜色对相关功能,并讨论了相关的新颜色筛选质量。

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