Radiative vector meson decay

Details Radiative vector meson decay Radiative vector meson decay

2004-11-04

arxiv.org/abs/hep-ph/0411063v1

Int.J.Mod.Phys.A20:1901-1904,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

Prepared for the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon

Scientific paper

10.1142/S0217751X05023591

We study the radiative $\rho$, $\omega$ and $\phi$ decay into $\pi^0 \pi^0 \gamma$ and $\pi^0 \eta \gamma $ taking into account mechanisms in which there are two sequential vector-vector-pseudoscalar or axial-vector--vector--pseudoscalar steps followed by the coupling of a vector meson to the photon, considering the final state interaction of the two mesons. Other mechanisms in which two kaons are produced through the same sequential mechanisms or from vector meson decay into two kaons which undergo final state interaction leading to the final pair of pions or $\pi^0 \eta$, are also considered. The results of the parameter free theory, together with the theoretical uncertainties, are compared with the latest experimental results at Frascati and Novosibirsk.

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