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

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

2008-11-23

arxiv.org/abs/0811.3773v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages

Scientific paper

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 $\rho\gamma$ and $\omega \gamma$ 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.

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