Department of Physics;
Nanjing University;
Nanjing 210093;
China;
CCAST (World Laboratory);
P.O. Box 8730;
Beijing 100080;
China Department of Physics;
Nanjing Normal University;
Nanjing 210097;
China CCAST (World Laboratory);
P.O. Box 8730;
Beijing 100080;
China;
Institute of Theoretical Physics;
Academia Sinica;
P.O. Box 2735;
Beijing 100080;
China Department of Physics;
Nanjing University;
Nanjing 210093;
China CCAST (World Laboratory);
P.O. Box 8730;
Beijing 100080;
China;
Institute of Theoretical Physics;
Academia Sinica;
P.O. Box 2735;
Beijing 100080;
China;
nonperturbative; methods; in; QCD; global; color; symmetry; model;