The strong decay patterns of [Formula omitted] and [Formula omitted] states in the relativized quark model

Employing the relativized quark model and the quark-interchange model, we investigate the decay of the charged heavy quarkonium-like states [Formula omitted], [Formula omitted], [Formula omitted], [Formula omitted] and [Formula omitted] into the ground and radially excited heavy quarkonia via emitting a pion meson. The [Formula omitted] and [Formula omitted] states are assumed to be hadronic molecules composed of open-flavor heavy mesons. The calculated decay ratios can be compared with the experimental data, which are useful in judging whether the molecule state assignment for the corresponding [Formula omitted] or [Formula omitted] state is reasonable or not. The theoretical framework constructed in this work will be helpful in revealing the underlying structures of some exotic hadrons.