2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/103420An analysis of various radiative $VPγ$ decays is performed using the two mixing angle description of the $η$-$η^\prime$ system. The agreement is excellent. Our results are expressed both in the ``octet-singlet'' and in the ``quark-flavour'' basis. It turns out that at the present experimental accuracy, the two angles are significantly different in the former, but not in the latter basis.4 pages, uses espcrc2 style. Talk presented at the 12th International High-Energy Physics Conference in Quantum Chromodynamics (QCD 2005), Montpellier, France, 4-8 July 2005High Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext