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Measuring psi(3770) -> Kshort Klong as a test of the S- and D-wave mixing of charmonia

P. Wang·X. H. Mo·C. Z. Yuan
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Abstract

Adding to the long standing "rho-pi puzzle" in psi(3686) and J/psi decays, recently BES reported the branching ratio of psi(3686) -> Kshort Klong which is enhanced relative to the pQCD " 12% rule" expectation from the branching ratio of J/psi -> Kshort Klong. If the enhancement is due to the mixing of the S- and D-wave charmonium states as in the rho-pi case, the newly measured branching ratio of psi(3686) -> Kshort Klong gives a constraint on the psi(3770) -> Kshort Klong. It serves as a good test for the scenario of the S- and D-wave mixing in the psi(3686) and psi(3770).

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P. Wang, X. H. Mo, C. Z. Yuan. 2004-10-22. Measuring psi(3770) -> Kshort Klong as a test of the S- and D-wave mixing of charmonia. https://doi.org/10.1103/physrevd.70.077505

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