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arXiv · hep-ph/0510384

Hadronic eta and eta-prime decays

B. Borasoy·R. Nissler
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Abstract

The hadronic decays eta, eta-prime -> 3 pi and eta-prime -> eta pi pi are investigated within the framework of U(3) chiral effective field theory in combination with a relativistic coupled-channels approach. Final state interactions are included by deriving s- and p-wave interaction kernels for meson-meson scattering from the chiral effective Lagrangian and iterating them in a Bethe-Salpeter equation. Very good overall agreement with currently available data on decay widths and spectral shapes is achieved.

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B. Borasoy, R. Nissler. 2005-10-30. Hadronic eta and eta-prime decays. https://doi.org/10.1140/epja%2Fi2005-10188-9

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