Observation of χ_{cJ} decaying into the p\bar{p}K^{+}K^{-} final state

BESIII Collaboration

First measurements of the decays of the three ${\chi }_{cJ}$ states to $p\bar{p}{K}^{+}{K}^{-}$ final states are presented. Intermediate $\varphi \to K^{+}{K}^{-}$ and $\Lambda (1520)\to p{K}^{-}$ resonance s…