Axial-vector meson mixing in orthocharmonium decays

Abstract

The new BES measurement on the two-body decays of J/psi and psi' into an axial-vector meson and a pseudoscalar meson is analyzed with the axial-K mixing including the one-photon annihilation contribution. A somewhat puzzling pattern of the K_1^+ K^- decay channels can be understood with no tight constraint on the mixing angle. The branching fractions of the K_1^0 K-bar^0 channels will be the cleanest source of information to determine the mixing angle from the 1^+ 0^- decays of J/psi and psi'.

14 pages with 4 eps figures

References in corpus (1)

• Properties of the Strange Axial Mesons in the Relativized Quark Model

Cited by in corpus (10)

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• Constraint on axial-vector meson mixing angle from nonrelativistic constituent quark model
• Decay of axial-vector mesons into VP and P$\gamma$
• Strange axial-vector mesons mixing angle
• Charmonium Decays to Axialvector plus Pseudoscalar Mesons
• Branching ratios of $B_c$ Meson Decaying to Vector and Axial-Vector Mesons
• First Estimates of Nonleptonic $B_c\to AT$ Weak Decays
• Study of $C$ parity violating and strangeness changing $J/\psi$ $\to$ $PP$ weak decays