$B\to K\bar{K}(\pi \eta )h$ decays in the presence of isovector scalar resonances $a_0(980,1450)$

Si-Yang Wang, Zhi-Qing Zhang, Zhi-Jie Sun +2

Different from the previous treatment in a two-body framework, we introduce the dimeson distribution amplitudes (DAs) to describe the strong dynamics between the S-wave resonances…