Update of η-η′ Mixing from J/ψ;→VP decays

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The η-η′ mixing angle is deduced from an updated phenomenological analysis of J/ψ; decays into a vector and a pseudoscalar meson. Its value in the quarka-flavour basis is found to be φP = (40.5±2.4), in agreement with most recent analyses. Corrections due to nona-ideal ω-φ mixing are shown to be negligible. The newly reported values of B(J/ψ;→ρπ) by the BABAR and BES Collaborations are crucial to get a consistent description of data. © 2008 American Institute of Physics.
Original languageEnglish
Pages (from-to)368-373
JournalAIP Conference Proceedings
Publication statusPublished - 1 Dec 2008


  • η-η
  • ω-φ
  • →VP decays
  • J/ψ
  • Mixing


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