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$K^*(892)^0\bar K^*(892)^0$ signals from $\chi_{cJ} (J=0,1,2)$ decays areobserved for the first time using a data sample of 14 million $\psi(2S)$ eventsaccumulated at the BES II detector. The branching fractions ${\calB}(\chi_{cJ}\to K^*(892)^0\bar K^*(892)^0)$ $(J = 0,1,2)$ are determined to be$(1.55 \pm 0.35 \pm 0.30)\times 10^{-3}$, $(1.58 \pm 0.32 \pm 0.29)\times10^{-3}$, and $(4.67 \pm 0.55 \pm 0.85)\times 10^{-3}$ for the $\chi_{c0}$,$\chi_{c1}$ and $\chi_{c2}$ decays, respectively, where the first errors arestatistical and the second are systematic. The significances of these signalsare about 4.2$\sigma$, 4.3$\sigma$, and 7.5$\sigma$, respectively.Comment: 8 pages, 6 figure

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

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Observation ofK*(892)0K¯*(892)0

Observation ofK(892)0K¯(892)0