在弛豫时间近似下QGP动力论方程中的分布函数(英文)

Distribution Functions in QGP Kinetic Equations under Relaxation Time Approximation

从有碰撞项的QGP动力论方程出发 ,在色涨落扰动下 ,利用弛豫时间近似 ,得到至二级修正的夸克和胶子分布函数 ,通过数值分析重点讨论了高温低密情况下QGP中成分粒子分布函数的特性 ,并且由分布函数得到净重子数密度和能量密度 .

From QGP kinetic equations with collision integrals,by using the realaxation time approximation,we calculate the distribution functions to the second order correction. We obtain the distribution functions for quarks (and anti-quarks) and gluons under the perturbation of the fluctuation of the color field.Then in the high-temperature-low-density area,we discuss the characteristics of the distribution functions,and use them to get the net baryon density and the energy density.