Vacuum condensates of QCD  

作　　者：秦松梅 周丽娟 顾运厅 马维兴 

机构地区：[1]College of Physics Science and Engineering Technology,Guangxi University,Nanning 530004,China [2]Collaboration Group of Hadron Physics and Non-perturbative QCD Study,Guangxi University of Technology,Liuzhou 545006,China [3]Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics C》2008年第7期521-529,共9页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(10647002,10565001);Natural Science Foundation of Guangxi(0575020,0542042,0481030)

摘　　要：We study the properties of QCD vacuum state in this paper. The values of various local quark vacuum condensates, quark-gluon mixed vacuum condensates, and the structure of non-local quark vacuum condensate are predicted by the solution of Dyson-Schwinger Equations in ＂rainbow＂ approximation with three sets of different parameters for effective gluon propagator. The light quark virtuality is also obtained in a consistent way. Our all theoretical results here are in good agreement with the empirical values used widely in literature and many other theoretical calculations.We study the properties of QCD vacuum state in this paper. The values of various local quark vacuum condensates, quark-gluon mixed vacuum condensates, and the structure of non-local quark vacuum condensate are predicted by the solution of Dyson-Schwinger Equations in ＂rainbow＂ approximation with three sets of different parameters for effective gluon propagator. The light quark virtuality is also obtained in a consistent way. Our all theoretical results here are in good agreement with the empirical values used widely in literature and many other theoretical calculations.

关 键 词：QCD vacuum condensates quark propagator QCD 

分 类 号：O572.243[理学—粒子物理与原子核物理]