Gasser-Leutwyler Coefficients of Chiral Lagrangian for Pseudoscalar Goldstone Bosons in Dyson-Schwinger Equations |
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| Authors: | GU Yun-Ting QIN Song-Mei ZHOU Li-Juan MA Wei-Xing |
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| Affiliation: | 1. Department of Physics, Guangxi University, Nanning 530004, China;2. Collaboration Group of Hadron Physics and Non-perturbative QCDStudy, Guangxi University of Technology, Liuzhou 545006, China;3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | ![]()
Based on the Dyson-Schwinger equations of quark propagator in rainbow truncation with an effective gluon propagator, the ten unknownGasser-Leutwyler coefficients of the chiral Lagrangian for pseudoscalar Goldstone bosons are predicted. The predicted values of Li with i=1,2,…,10 are in a reasonableagreement with empirical values used widely in literature, and thevalues predicted by many other theoretical models with QCD characteristics. |
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| Keywords: | chiral perturbation theory Gasser-Leutwyler coefficient Dyson-Schwinger equation |
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