Speaker
Kanat Nurlan
(JINR)
Description
The mixing angle of the vector $\omega$ and $\phi$ mesons is estimated in the framework of Nambu - Jona-Lasinio model. The decay $\phi \to \pi^{0} \gamma$ is considered as a basic process to determine this angle. The obtained value is compared with the results of the other authors. Besides, the width of the decay $\phi \to 3\pi$ and the cross-section of the process $e^{+}e^{-} \to \pi^{0} \phi$ are calculated by using this angle.
