Abstract

The two newly observed hidden-bottom mesons Z(b)(+) (10610) and Z(b)'(+) (10650) with quantum numbers J(P) = 1(+) are considered as hadronic molecules composed of (B) over barB* and (B) over bar *B*, respectively. We give predictions for the widths of the strong two-body decays Z(b)(+) -> Upsilon(nS) + pi(+) and Z(b)'(+) -> Upsilon(nS) + pi(+) in a phenomenological Lagrangian approach.