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Decays of the chi_{cJ} states (J=0,\ 1,\ 2) to \Lambda \Lambda bar\ pi^{+}\pi^{-}, including processes with intermediate \Sigma(1385), are studiedthrough the E1 transition psi'-->\gamma chi_{cJ} using 106 million psi' eventscollected with the BESIII detector at BEPCII. This is the first observation ofchi_{cJ} decays to the final state \Lambda\Lambda bar \pi^{+}\pi^{-}. Thebranching ratio of the intermediate process chi_{cJ}-->\Sigma(1385)^{+/-}\bar{\Sigma}(1385)^{-/+} is also measured for the first time, and the resultsagree with the theoretical predictions based on the color-octet effect.

Observation of chi_{cJ} Decays to \Lambda \Lambda bar\pi^{+}\pi^{-}