摘要
Based on the Global Color Symmetry Model, the non-perturbative Q, CD vacuum is investigated in the parameterized fully dressed quark propagator. Our theoretical predictions for various quantities characterized the QCD vacuum are in agreement with those predicted by many other phenomenologieal QCD inspired models. The successful predictions clearly indicate the extensive validity of our parameterized quark propagator used here. A detailed discussion on the arbitrariness in determining the integration cut-off parameter ofμ in calculating QCD vacuum condensates and a good method, which avoided the dependence of calculating results on the cut-off parameter is also strongly recommended to readers.
基金
The project supported in part by National Natural Science Foundation of China under Grant Nos.10647002 and 10565001
Natural Science Foundation of Guangxi Province under Grant Nos.0542042,0481030,and 0575020
Guangxi University of Technology under Grant No.05006
