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arXiv · hep-ph/0511290

Decays of eta and eta-prime within a chiral unitary approach

B. Borasoy·R. Nissler
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Abstract

Various decays of eta and eta-prime 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 agreement with experimental data is achieved.

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B. Borasoy, R. Nissler. 2005-11-24. Decays of eta and eta-prime within a chiral unitary approach. https://arxiv.org/abs/hep-ph/0511290

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