# A VMD Based, Nonet and SU(3) Symmetry Broken Model For Radiative Decays of Light Mesons

Abstract : We present a VMD based model aiming to describe all radiative decays of light mesons. We show that the SU(3) breaking mechanism proposed by Bando, Kugo and Yamawaki (BKY), supplemented by nonet symmetry breaking in the pseudoscalar sector are sufficient to provide a nice description of all data, except the charged K* radiative width. It is also shown that nonet symmetry breaking has effects which cannot be disantangled from those produced by coupling of glue to the eta' meson. Coupling of glue to $\eta$ is not found to be required by the data. Asssuming the charged K* radiative width is indeed at its presently accepted value necessitates to supplement the BKY breaking in a way which finally preserves an equivalence statement between the VMD approach to radiative decays and the Wess-Zumino-Witten Lagrangian.
Document type :
Conference papers

http://hal.in2p3.fr/in2p3-00195712
Contributor : Dominique Girod <>
Submitted on : Tuesday, December 11, 2007 - 1:38:06 PM
Last modification on : Saturday, December 19, 2020 - 11:32:02 AM

### Citation

M. Benayoun, L. del Buono, S. Eidelman, V. N. Ivanchenko, H.B. O'Connell. A VMD Based, Nonet and SU(3) Symmetry Broken Model For Radiative Decays of Light Mesons. International workshop on e+e- collisions from Phi to J/psi, Mar 1999, Novosibirsk, Russia. ⟨in2p3-00195712⟩

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