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arXiv · hep-lat/9401001

Hadronic coupling constants in lattice QCD

R. Altmeyer·M. Goeckeler·R. Horsley·E. Laermann·G. Schierholz·P. M. Zerwas
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Abstract

We report on calculations of the hadronic coupling constants $g_{ρππ}$ and $g_{nnπ}$ 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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R. Altmeyer, M. Goeckeler, R. Horsley, E. Laermann, G. Schierholz, P. M. Zerwas. 1994-01-04. Hadronic coupling constants in lattice QCD. https://doi.org/10.1016/0920-5632(94)90394-8

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