在近平衡态QGP中费米子的分布函数  

Distribution Function for Fermions in Quasi-equilibrium QGP

作　　者：杨芳[1] 周运清[1] 李家荣[1] 

机构地区：[1]华中师范大学粒子物理研究所,武汉430079

出　　处：《高能物理与核物理》2003年第1期58-62,共5页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(10175026)资助~~

摘　　要：从QGP动力论出发,得到QGP在色场涨落扰动下偏离平衡态而处于近平衡时的分布函数, 进而分析了决定偏离因子的物理因素.并分别讨论了在高温低密和低温高密区偏离因子特征.Based on the kinetic theory, the distribution function for fermions in quasi-equilibrium QGP, which is perturbed by the fluctuation of the color field, has been obtained. Furthermore, the physical bases that decide the departure factor are analyzed. The characteristics of the departure factor in high-temperature-low-density and low-temperature-high-density are also discussed.

关 键 词：近平衡态 QGP 费米子 分布函数 夸克-胶子等离子体 动力论 相对论重离子碰撞 量子色动力学 

分 类 号：O572.243[理学—粒子物理与原子核物理]