高温下夸克场真空图中的红外发散  

Infrared Divergences of Three-loop Vacuum Graghs of Quark Field at Hight Temperature

作　　者：陈相君[1] 张卫宁[1] 王为[1] 

机构地区：[1]哈尔滨工业大学物理系,哈尔滨150001

出　　处：《高能物理与核物理》1999年第3期260-267,共8页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金;哈尔滨工业大学校基金

摘　　要：用热传播子的实时形式对高温条件下夸克（忽略质量）场三圈真空图进行了详细地计算，找出了其中和费米-狄拉克统计因子有关的红外发散积分的类型，并对这种发散积分进行了正规化，进一步把真空图中的红外发散全部孤立出来了．The infrared divergences in vacuum graghs of quark (ignored mass) field at high tempethere are calculated in detial by real-time formulation of Green function, a kind of infrared divergent integral related to F-D statistical factor is pointed out and its regularization is discussed. All of the infrared divergences in three-loop vacuum graghs of quark field are isolated.

关 键 词：高温 夸克场 真空图 红外发散 正规化 

分 类 号：O572.2[理学—粒子物理与原子核物理] O413.2[理学—物理]