Invariant mass distributions of and states in the decay modes and , for the two models discussed in the text: model 1 (dashed lines) and model 2 (solid lines). The units in the axis are obtained taking .
Invariant mass distributions of states produced in the decay , obtained for the two models discussed in the text: model 1 (dashed lines) and model 2 (solid lines). The thin lower lines correspond to omitting the next-to-leading-order (NLO) terms of the potential. The normalization is the same as in Fig. 1.
Invariant mass distributions of states produced in the decay , obtained for the two models discussed in the text: model 1 (dashed lines) and model 2 (solid lines). The thin lower lines correspond to omitting the NLO terms of the potential. The normalization is the same as in Fig. 4.
Comparison of the invariant mass distributions of states (upper panel) and states (lower panel) obtained with model 1 (dashed lines) and model 2 (solid lines) with a pure phase-space distribution (dotted lines).