Mixing of eta-eta' Mesons in J/psi Decays into a Vector and a Pseudoscalar Meson

A. Bramon, R. Escribano, M. D. Scadron

The octet-singlet mixing angle ${\theta }_P$ in the pseudoscalar meson nonet is deduced from the rich set of accurate data on $J/\psi$ decays into a vector and a pseudoscalar meson. Correctio…