Hadronic eta and eta-prime decays

Details Hadronic eta and eta-prime decays Hadronic eta and eta-prime decays

2005-10-28

arxiv.org/abs/hep-ph/0510384v2

Eur.Phys.J. A26 (2005) 383-398

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 5 figures, 8 tables

Scientific paper

10.1140/epja/i2005-10188-9

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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