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Measurements of the branching fractions of \boldmath $χ_{cJ}\toΣ^0\barΣ^0η$
Using $(2712.4\pm14.3)\times10^{6}$ $ψ(3686)$ events collected with the BESIII detector at the BEPCII collider, we report the first observations of the decay $χ_{cJ}(J=0,1,2) \to Σ^0\barΣ^0η$. The signal significances, after considering systematic uncertainties, are determined to be 7.2$σ$, 5.7$σ$,
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