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

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).

arXiv comment4 pages, 1 figure

References in corpus (11)

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Cited by in corpus (6)

• Psi'' decays to charmless final states
• Weak productions of new charmonium in semi-leptonic decays of B_c
• Search for the non-D\barD Decay psi(3770) --> K_S^0 K_L^0
• Possible large branching fraction of psi(3770) decays to charmless final states
• Measurement of the exclusive light hadron decays of the psi'' in e+e- experiments
• Measurement of the chi_{c2} Polarization in psi(2S) to gamma chi_{c2}