Quantum loops in radiative decays of the $a_1$ and $b_1$ axial-vector mesons

Abstract

A previous model where the low-lying axial-vector mesons are dynamically generated, implementing unitarity in coupled channels in the vector-pseudoscalar ($VP$) meson interaction, is applied to evaluate the decay widths of the a₁(1260)$and$b₁(1235)$axial-vector mesons into$πγ$. Unlike the case of the$