Study of lattice correlation functions at small times using the QCD sum rules continuum model Original Research Article

In this paper we study the work of Leinweber by applying the Continuum Model of QCD sum rules (QCDSR) to the analysis of (quenched) lattice correlation functions. We expand upon his work in several areas: we study meson states as well as baryons, we analyse data from several lattice spacings, and we include data from the Sheikholeslami-Wohlert (clover) improved action. We find that the QCDSR continuum model ansatz can reproduce the data, but only for non-physical values of its parameters. This leads us to reject it as a model for hadronic correlation functions.