S. J. Chen

most citedEvidence for the Direct Two-Photon Transition from

ψ (3686)

J / ψ

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hep-ex2012★ 10 cited

Evidence for the Direct Two-Photon Transition from $ψ (3686)$ to $J / ψ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +354

The two-photon transition $ψ (3686) \to γ γ J / ψ$ is studied in a sample of 106 million $ψ (3686)$ decays collected by the BESIII detector. The branching fraction is measured to be $(3.1\…

Evidence for the Direct Two-Photon Transition from ψ(3686) to J/ψ

Evidence for the Direct Two-Photon Transition from $ψ (3686)$ to $J / ψ$