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- W2007219954 abstract "Abstract Duality is applied in a quasi-local form to the SU(4) × SU(4) current two-point functions. Interpolating functions for some of their space-time components are assumed to be given by the free quark model. Mass intervals in the finite energy sum rules are taken to be approximately SU(3) × SU(3) invariant and a linear dependence of the hadronic mass spectrum upon the radial quantum number is assumed. The correct order of magnitude of various meson decay constants is reproduced provided the color gauge group is SU(3). The bare uncharmed quark masses are given by the formulae: m u ≌ M π F π /F π √6 ≌ 40 MeV , m s /m u ≌ 1 = 6 . The η-η mixing problem is discussed. Predictions are made for the masses and decay constants of the vector mesons of the first L = 2 level of SU(6) × O(3), as well as for the decay constants of the radially excited pseudoscalar mesons; estimates of corrections to PCAC in Goldberger-Treiman relations are presented. The bare charmed quark mass is found to be of the order of 1.1–1.2 GeV. Some decay constants of charmed mesons are evaluated." @default.
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- W2007219954 date "1977-10-01" @default.
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- W2007219954 title "Meson decay constants and bare quark masses from duality for current two-point functions" @default.
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- W2007219954 doi "https://doi.org/10.1016/0550-3213(77)90198-5" @default.
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