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Hadronic coupling constants in lattice QCD
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classification
hep-lat
keywords
constantscouplinghadroniclatticepointablebeencalculations
abstract
We report on calculations of the hadronic coupling constants $g_{\rho\pi\pi}$ and $g_{nn\pi}$ based on lattice QCD with four flavors of dynamical staggered fermions. By computing 2--point and 3--point Green's functions we have been able to determine these coupling constants ab initio from QCD; the results are compatible with the experimental values.
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