Using the 2024 PDG branching fraction for ψ(2S)→ΛΣ0+c.c., the paper finds no significant isospin violation in charmonium decays, reversing its own 2020 claim.
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Isospin strikes back
Using the 2024 PDG branching fraction for ψ(2S)→ΛΣ0+c.c., the paper finds no significant isospin violation in charmonium decays, reversing its own 2020 claim.