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A sample of 3.95M ψ(2S) decays registered in the BES detector are used to study final states containing pairs of octet and decuplet baryons. We report branching fractions for ψ(2S)→pp̄, ΛΛ, Σ⁰Σ⁰, Ξ^-Ξ⁺, Δ⁺⁺Δ^--, Σ⁺(1385)Σ^-(1385), Ξ⁰(1530)Ξ⁰(1530), and Ω^-Ω⁺. These results are compared to expectations based on the SU(3)-flavor symmetry, factorization, and perturbative QCD.
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Bai et al. (2001) studied this question.
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