Gasser-Leutwyler Coefficients of Chiral Lagrangian for Pseudoscalar Goldstone Bosons in Dyson-Schwinger Equations

(整期优先)网络出版时间:2008-11-21
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BasedontheDyson-Schwingerequationsofquarkpropagatorinrainbowtruncationwithaneffectivegluonpropagator,thetenunknownGasser-LeutwylercoefficientsofthechiralLagrangianforpseudoscalarGoldstonebosonsarepredicted.ThepredictedvaluesofL_iwithi=1,2,...,10areinareasonableagreementwithempiricalvaluesusedwidelyinliterature,andthevaluespredictedbymanyothertheoreticalmodelswithQCDcharacteristics.