Decays of η and η ′ within a chiral unitary approach
نویسندگان
چکیده
Decays of η and η ′ within a chiral unitary approach Various decays of η and η ′ 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 sand 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.
منابع مشابه
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The hadronic decays η → πππ, η ′ → πππ and η ′ → ηππ are investigated within a U (3) chiral unitary approach. Final state interactions are included by deriving the effective s-wave potentials for meson meson scattering from the chiral effective Lagrangian and iterating them in a Bethe-Salpeter equation. With only a small set of parameters we are able to explain both rates and spectral shapes of...
متن کاملsubmitted to acta physica slovaca 1 – 6 Discussion
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