The octet-singlet mixing angle θP in the pseudoscalar meson nonet is deduced from the rich set of accurate data /OP on J/Ψ decays into a vector and a pseudoscalar meson. Corrections due to non-ideal ω-φ mixing have been included for the first time and turn out to be crucial to find θP = -16.9° +/- 1.7°, which is appreciably less negative than previous results coming from similar analyses.
Physics Letters B
- Pub Date:
- February 1997
- High Energy Physics - Phenomenology
- 9 pages, LaTeX, full postscript file available via anonymous ftp at ftp://ftp.ifae.es/preprint/ft/uabft412.ps