The $ρ- π$ Puzzle of J/ψand ψ' Decays

Details The $ρ- π$ Puzzle of J/ψand ψ' Decays The $ρ- π$ Puzzle of J/ψand ψ' Decays

1999-03-12

arxiv.org/abs/hep-ph/9903332v3

Commun.Theor.Phys. 33 (2000) 285-290

Physics

High Energy Physics

High Energy Physics - Phenomenology

9pages, added reference, typos, and very slight change in text, LATEX format

Scientific paper

The recent BES Collaboration data on $\psi' \ra PV$, particularly the isospin violating mode $\psi' \ra \pi^0 \omega^0$ and finding of a finite number for $B(\psi' \ra K^{*0}\bar{K}^0)$, enable us now to deal more precisely about the challenges to theory concerning this extraordinary and remarkable so called $\rho - \pi$ Puzzle of $J/\psi$ and $\psi'$ Decays. In terms of existing data, and deploying the simplest phenomenology, measurement of $\psi' \ra \pi^+\pi^-$ 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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