Radiative VPgamma transitions and eta-eta mixing

A value for the $eta$-$eta^prime$ mixing angle is extracted from the data on $VPgamma$ transitions using simple quark-model ideas. The set of data covers {it all} possible radiative transitions between the pseudoscalar and vector meson nonets. Two main ingredients of the model are the introduction of flavour-dependent overlaps for the various $qbar{q}$ wave functions and the use of the quark-flavour basis to describe the $eta$-$eta^prime$ system. In this basis the mixing angle is found to be $phi_P=(37.7pm 2.4)^circ$.