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Scalar sigma meson effects in radiative rho^0-meson decays

A. Gokalp·S. Solmaz·O. Yilmaz
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Abstract

We study the radiative $ρ^0\to π^+π^-γ$ and $ρ^0\to π^0π^0γ$ decays and we calculate their branching ratios using a phenomenological approach by adding to the amplitude calculated within the framework of chiral perturbation theory and vector meson dominance the amplitude of $σ$-meson intermediate state. Our results for the branching ratios are in good agreement with the experimental values.

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A. Gokalp, S. Solmaz, O. Yilmaz. 2003-02-17. Scalar sigma meson effects in radiative rho^0-meson decays. https://doi.org/10.1103/physrevd.67.073007

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