Study of the decay ψ(3686) \to Σ^{0}\barΣ^{0}ϕ
Creators: name: BESIII Collaboration
name: Ablikim, M.
name: Achasov, M. N.
name: Adlarson, P.
name: Afedulidis, O.
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name: Berger, N.
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name: Bertani, M.
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name: Bortone, A.
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name: Chelkov, G.
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name: Chen, Chao
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name: Dbeyssi, A.
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name: Deng, Z. Y.
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Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Using $(27.12\pm 0.14)\times 10^{8}$ $ψ(3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decay $ψ(3686)\toΣ^{0}\barΣ^{0}ϕ$ is observed for the first time with a statistical significance of 7.6$σ$. Its branching fraction is measured to be $(2.64 \pm 0.32_{\textrm{stat}} \pm 0.12_{\textrm{sys}}) \times 10^{-6}$, where the first uncertainty is statistical and the second is systematic. In addition, we search for potential intermediate states in the $Σ^{0}ϕ$($\barΣ^{0}ϕ$) invariant mass distribution and a possible threshold enhancement in the $Σ^{0}\barΣ^{0}$ system, but no conclusive evidence of is observed.