Addendum to: Measurement of Γ ee (J /ψ ) with KEDR detector
Journal of High Energy Physics(2020)
摘要
The electronic width of the J / ψ meson and its product by the branching fractions of J / ψ meson decay to hadrons and electrons measured with the KEDR detector at the VEPP-4M e + e − collider have been reported in ref. [1].
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