2008/07/25 by Rafel Escribano, R. Escribano
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1016/j.nuclphysbps.2008.09.041
published as Nucl.Phys.Proc.Suppl.181-182:226-230,2008 · 5 pages, uses espcrc2 style. Talk presented at the International Workshop on e+e- collisions from Phi to Psi (PHIPSI08), Laboratori Nazionali di Frascati (Rome), Italy, 7-10 April 2008
arxiv created 2008/07/25 · openalex publication_date 2008/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The η-η^′ pseudoscalar mixing angle and the gluonium content of the η^′ meson are deduced from an updated phenomenological analysis of J/ψ decays into a vector and a pseudoscalar meson. The values for the mixing angle and the gluonic content of the η^′ wave function are ϕP=(44.5± 4.3)^∘ and Z2η^′=0.28± 0.21, respectively.