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


الملخص بالإنكليزية

The radiative decays $Vto Sgamma$ and $Sto Vgamma$ 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 $phito f_0gamma$ and $rhotosigmagamma$ branching ratios and the ratio $Gamma(phito f_0gamma)/Gamma(phito a_0gamma)$ are satisfactorily accommodated in our approach. We also estimate the decay widths of the $f_0,a_0torhogamma,omegagamma$ transitions. All the processes considered are of interest for ongoing experimental programs in Frascati, Julich and Novosibirsk.

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