摘要
Based on the Dyson-Schwinger equations of quark propagator in rainbow truncation with an effective gluonpropagator,the ten unknown Gasser-Leutwyler coefficients of the chiral Lagrangian for pseudoscalar Goldstone bosonsare predicted.The predicted values of L_i with i=1,2,...,10 are in a reasonable agreement with empirical values usedwidely in literature,and the values predicted by many other theoretical models with QCD characteristics.
基金
supported in part by National Natural Science Foundation of China under Grant Nos.10647002 and 10565001
the Natural Science Foundation of Guangxi under Grant Nos.0542042,0481030,and 0575020
