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arXiv · 0802.3909

Update of eta-eta' mixing from J/psi->VP decays

Rafel Escribano
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Abstract

The $η$-$η^\prime$ mixing angle is deduced from an updated phenomenological analysis of $J/ψ$ decays into a vector and a pseudoscalar meson. Corrections due to non-ideal $ω$-$ϕ$ mixing are confirmed to be crucial to find $θ_P=(-16.9\pm 1.7)^\circ$, in agreement with most recent analyses. The newly reported values of $B(J/ψ\toρπ)$ by the BABAR and BES Collaborations make more difficult a reasonable description of data.

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Rafel Escribano. 2008-02-26. Update of eta-eta' mixing from J/psi->VP decays. https://doi.org/10.1063/1.2973529

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