Radiative decays of basic scalar, vector and tensor mesons and the determination of the P-wave q multiplet

Abstract

We perform simultaneous calculations of the radiative decays of scalar mesons f 0(980)↦γγ, a 0(980)↦γγ, vector meson φ(1020)↦γf 0(980), γa 0(980), γπ0, γη, γη′ and tensor mesons a 2(1320)↦γγ, f 2(1270)↦γγ, f 2(1525)↦γγ, assuming all these states to be dominantly the q ones. A good description of the considered radiative decays is reached by using almost the same radial wave functions for scalar and tensor mesons that supports the idea for the f 0(980), a 0(980) and a 2(1320), f 2(1270), f 2(1525) to belong to the same P-wave q multiplet.