Measurements of the branching fractions of ${\chi }_{cJ}\to 2K^{+}2K^{-}\omega$ and $\varphi K^{+}{K}^{-}\omega$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

Using a data sample of $(2712.4\pm 14.3)\times 10^6$ $\psi (3686)$ events collected with the BESIII detector operating at the BEPCII collider, we report the first observation of th…