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arXiv · hep-ph/9903332

The $ρ- π$ Puzzle of J/ψand ψ' Decays

S. F. Tuan
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Abstract

The recent BES Collaboration data on $ψ' \ra PV$, particularly the isospin violating mode $ψ' \ra π^0 ω^0$ and finding of a finite number for $B(ψ' \ra K^{*0}\bar{K}^0)$, enable us now to deal more precisely about the challenges to theory concerning this extraordinary and remarkable so called $ρ- π$ Puzzle of $J/ψ$ and $ψ'$ Decays. In terms of existing data, and deploying the simplest phenomenology, measurement of $ψ' \ra π^+π^-$ and whether a finite number for the $K^{*+} K^-$ mode might require a significantly larger accumulation of data, remain interesting questions.

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S. F. Tuan. 1999-03-24. The $ρ- π$ Puzzle of J/ψand ψ' Decays. https://doi.org/10.1088/0253-6102%2F33%2F2%2F285

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