Polynomial kernels with zeros at the radial excitation masses are used to suppress the hadronic continuum in QCD sum rules, giving B_K ≈ 0.91, B_B ≈ 1.0, m0² ≈ 1.0 GeV², and f_K ≈ 0.107 GeV.
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Pseudoscalar Meson Mixing, the Contribution of the Hadronic Continuum to Deviation from Factorization
Polynomial kernels with zeros at the radial excitation masses are used to suppress the hadronic continuum in QCD sum rules, giving B_K ≈ 0.91, B_B ≈ 1.0, m0² ≈ 1.0 GeV², and f_K ≈ 0.107 GeV.