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Observation of eta(c) -> omega omega in J/psi -> gamma omega omega
(AMER PHYSICAL SOC, 2019)
Using a sample of (1310.6 +/- 7.0) x 10(6) J/psi events recorded with the Beijing Spectrometer III detector at the Beijing Electron Positron Collider II, we report the observation of the decay of the (1(1)S(0)) charmonium ...