Decay of axial-vector mesons into VP and Pγ

We propose a phenomenological Lagrangian for the decay of the SU(3) nonets of the axial-vector mesons of JPC=1+-,1++ into a vector meson and a pseudoscalar constructed with tensor fields for the vector and axial-vector mesons. The formulation leads to a good reproduction of the different decay branching ratios and assuming vector meson dominance (VMD) it also leads to good results for the radiative decay of the a1 into pion and photon, and in agreement with the structure proposed in the chiral tensor formulation of radiative decay of axial-vector mesons. The two SU(3) parameters and the mixing angle of K1A and K1B needed to give the physical K1(1270) and K1(1400) resonances are also determined