Mixing of η-η′ mesons in decays into a vector and a pseudoscalar meson

1997/03/13 by A. Bramòn, A. Bramon, Rafel Escribano +2 · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/s0370-2693(97)00508-x

published as Phys.Lett. B403 (1997) 339-343 · 9 pages, LaTeX, full postscript file available via anonymous ftp at ftp://ftp.ifae.es/preprint/ft/uabft412.ps

arxiv created 1997/03/13 · openalex publication_date 1997/06/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The octet-singlet mixing angle θ_P in the pseudoscalar meson nonet is deduced from the rich set of accurate data 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 θ_P = -16.9 ± 1.7 degrees, which is appreciably less negative than previous results coming from similar analyses.

Citations

• Implications of ηη′ mixing for the decay η → 3π

Cited by

• Axial U(1) dynamics in η and η′ photoproduction
• New mass and mass-mixing angle relations for pseudoscalar mesons
• η−η′ mixing from U(3)L⊗U(3)R chiral perturbation theory