Radiative decays of scalar mesons $f_0(980)$ and $a_0(980)$ into $ρ(ω) γ$ in the local Nambu-Jona-Lasinio model

Volkov, M. K.; Bystritskiy, Yu. M.; Kuraev, E. A.

Radiative decays of scalar mesons $f_0(980)$ and $a_0(980)$ into $ρ(ω) γ$ in the local Nambu-Jona-Lasinio model

Authors

Volkov, M. K.

Bystritskiy, Yu. M.

Kuraev, E. A.

Description

In the framework of the local Nambu-Jona-Lasinio model the radiative decay widths of the scalar mesons $f_0(980)$ and $a_0(980)$ into $ργ$ and $ωγ$ are calculated. The contributions of the quark loops and the meson loops are taken into account. For the radiative decays of the scalar meson $f_0(980)$ the contribution of the meson loops plays the dominant role. On the other side for the radiative decays of the scalar meson $a_0(980)$ the main contribution is given by the quark loops.
7 pages