Speaker
Dmitry Kyshtymov
(Budker Institute of Nuclear Physics)
Description
This work presents results of the branching fractions measurements of $J/\psi$ decay into the final states $\pi^+ \pi^-\eta$ and $K^+ K^-\eta$ at KEDR.
KEDR is a universal magnetic detector located at the VEPP-4M collider in Novosibirsk. The current analysis was performed on 5.23 million of $J/\psi$ decays.
The process into $\pi^+ \pi^-\eta$ has been studied through $\rho$ and $\omega$ resonances, taking into account their interference, the process into $K^+ K^-\eta$ has been researched through $\phi$ resonance. In both cases, $\eta$ meson decays into $\gamma\gamma$.
As a result of the work, the branching fractions were obtained, the accuracy of which are comparable to the results of previous measurements.
Primary author
Dmitry Kyshtymov
(Budker Institute of Nuclear Physics)
