The decay $ρ^{0}\to π^{+}+π^{-}+γ$ and the coupling constant g$_{ρσγ}$

Details The decay $ρ^{0}\to π^{+}+π^{-}+γ$ and the coupling constant g$_{ρσγ}$ The decay $ρ^{0}\to π^{+}+π^{-}+γ$ and the coupling constant g$_{ρσγ}$

2000-04-18

arxiv.org/abs/nucl-th/0004041v2

Phys.Rev. D62 (2000) 093018

Physics

Nuclear Physics

Nuclear Theory

9 pages(RevTex), 5 ps figures

Scientific paper

10.1103/PhysRevD.62.093018

The experimental branching ratio for the radiative decay
$\rho^{0}\to\pi^{+}+\pi^{-}+\gamma$ is used to estimate the coupling constant
$g_{\rho\sigma\gamma}$ for a set of values of $\sigma$-meson parameters
M$_{\sigma}$ and $\Gamma_{\sigma}$. Our results are quite different than the
values of this constant used in the literature.

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