Is the Belle result for the cross section σ(e+e−→J/ψ+ηc) a real difficulty for QCD?
Author:
Publisher
Elsevier BV
Subject
Nuclear and High Energy Physics
Reference14 articles.
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4. Bc -meson decays into J/ψ plus a light meson in the improved perturbative QCD formalism;Physical Review D;2023-11-08
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