Linear Sigma Model predictions for V->Sgamma and S->Vgamma decays

Details Linear Sigma Model predictions for V->Sgamma and S->Vgamma decays Linear Sigma Model predictions for V->Sgamma and S->Vgamma decays

2008-06-18

arxiv.org/abs/0806.3007v2

Phys.Lett.B670:27-31,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

A comment on vector meson loops added. 2 references added. Typos corrected. Accepted for publication in Physics Letters B

Scientific paper

10.1016/j.physletb.2008.10.031

The radiative decays $V\to S\gamma$ and $S\to V\gamma$ with $V=\rho, \omega, \phi$ and $S=a_0, \sigma, f_0$ are calculated within the framework of the Linear Sigma Model. Current experimental data on the $\phi\to f_0\gamma$ and $\rho\to\sigma\gamma$ branching ratios and the ratio $\Gamma(\phi\to f_0\gamma)/\Gamma(\phi\to a_0\gamma)$ are satisfactorily accommodated in our approach. We also estimate the decay widths of the $f_0,a_0\to\rho\gamma,\omega\gamma$ transitions. All the processes considered are of interest for ongoing experimental programs in Frascati, J\"ulich and Novosibirsk.

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