Production of coherent mixtures of resonances in the quark model

The production of a coherent mixture of the ${f}^{0}$ and a degenerate $s$-wave resonance is described in the quark model by classifying the two resonances in the $J=2$ and $J=0$ states of the same $^{3}P$ configuration. The model predicts experimentally observed decay angular distributions, including the cancellation of the peak in the center of the $d$ wave by $s$-wave interference.