Improved measurement of the branching ratio of J/psi-->K_S K_L

Abstract

The branching ratio of J/psi-->K_S K_L is measured with improved precision to be B(J/psi-->K_S K_L) = (1.82\pm 0.04\pm 0.13)\times 10^{-4}. using J/psi data collected with the Beijing Spectrometer (BESII) at the Beijing Electron-Positron Collider. This result is used to test the perturbative QCD ``12%'' rule between psi(2S) and J/psi decays and to investigate the relative phase between the three-gluon and one-photon annihilation amplitudes in J/psi decays.

arXiv comment10 pages, 14 figures, 2 tables, submitted to Phys. Rev. D

References in corpus (5)

• A possible hadronic excess in psi(2S) decay and rho-pi puzzle
• On Large Final-State Phases in Heavy Meson Decays
• Phases and Amplitudes in Inclusive $\Psi$ and ${\Psi }^{\prime }$ Decays
• A large final-state interaction in the 0-0- decays of J/psi
• Psi(2S) two- and three-body hadronic decays

Cited by in corpus (21)

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• Evidence for f0(980)f0(980) production in chi_c0 decays
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• Study of the $e^{+}{e}^{-}\to K^{+}{K}^{-}$ reaction in the energy range from 2.6 to 8.0 GeV
• Search for K_S K_L in psi'' decays
• Possible large branching fraction of psi(3770) decays to charmless final states
• Measurement of Interference between Electromagnetic and Strong Amplitudes in psi(2S) Decays to Two Pseudoscalar Mesons
• Measuring psi(3770) -> Kshort Klong as a test of the S- and D-wave mixing of charmonia
• Observation of $K^{\ast }(892{)}^0{\bar{K}}^{\ast }(892{)}^0$ in ${\chi }_{cJ}$ Decays
• S-D mixing and $\psi (3770)$ production in $e^{+}{e}^{-}$ annihilation and B decay and its radiative transitions
• Phase Difference Between the Electromagnetic and Strong Amplitudes for psi(2S) and J/psi Decays into Pairs of Pseudoscalar Mesons
• Recent $J/\psi$ Results from BESII
• Clean Prediction of \CP violating processes $\psi$, $\varphi$ and ${\rm Y}(1S)$ decay to KsKs and KLKL
• Timelike Form Factor of the Kaon for |Q^2|=M^2(J/psi)
• Search for K_S K_S in J/psi and psi(2S) decays
• Branching fraction measurement of $J/\psi \to K_S{K}_L$ and search for $J/\psi \to K_S{K}_S$
• Symmetry analysis of charmonium two-body decay
• About Detecting CP-Violating Processes in $J/ψ\to \KzKzb $ Decay
• Hadronic decays of charmonia from BESII
• Recent Results of $\psi (2S)$ Decays from BES