Observation of ${\chi }_{c1}$ decays into vector meson pairs $\varphi \varphi$, $\omega \omega$, and $\omega \varphi$

M. Ablikim, M. N. Achasov, L. An +319

Decays of ${\chi }_{c1}$ to vector meson pairs $\varphi \varphi$, $\omega \omega$ and $\omega \varphi$ are observed for the first time using $(106\pm 4)\times 10^6$ $\psip$ events accumulated at the BESIII detector at the B…