Pair Production in Chromoelectric Field with Back Reaction  

作　　者：Mo-Ran Jia Feng Wan Chong Lv Bai-Song Xie 贾默然;弯峰;吕冲;谢柏松(College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China;Beijing Radiation Center,Beijing 100875,China)

机构地区：[1]College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China [2]Beijing Radiation Center, Beijing 100875, China

出　　处：《Communications in Theoretical Physics》2018年第10期430-438,共9页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.11475026

摘　　要：Massless quark pair production in SU(2) gauge chromoelectric field is investigated by solving the Wigner function with back reaction. The temporal evolution of specific field and its current are obtained self consistently. For the quark distribution function, both its time and momentum dependence are studied. In particular, some interesting phenomena are found, for example, the more abundant symmetry or/and antisymmetry characteristics, the existence of the attractive basin structure and the existence of the momentum "gap" in the quark distribution and so on. All the phenomena are associated with the quark-gluon plasma oscillation, which due to the back reaction effect. The study and analysis qualitatively about the components of the Wigner function are expected to be helpful to deepen the understanding of the QCD vacuum.

关 键 词：particle production in Non-Abelian gauge covariant Wigner function in Non-Abelian gauge Schwinger mechanism 

分 类 号：O572.33[理学—粒子物理与原子核物理] TQ028.8[理学—物理]