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Intrinsic Charm of Vector Mesons: A Possible Solution of the "rho pi" Puzzle
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Intrinsic Charm of Vector Mesons: A Possible Solution of the "rho pi" Puzzle
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An outstanding mystery of charmonium physics is why the J/\psi decays prominently to pseudoscalar plus vector meson channels, such as J/\psi -> \rho \pi and J/\psi -> K^*K, whereas the \psi'(2S) does not. We show that such decays of J/\psi and their suppression for \psi'(2S) follow naturally from the existence of intrinsic charm |qbar q cbar c> Fock components of the light vector mesons.
Forward citations
Cited by 1 Pith paper
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Unquenched Charmonium and Beyond
This Lanzhou-group review argues that coupled-channel (unquenched) effects, not exotic constituents, are the common thread explaining charmonium anomalies from the rho-pi puzzle to the Y-problem states.
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