We conduct a theoretical study of the Dₒ₁ (2460) Dₛ ^+ ^- decay from the perspective that the Dₒ₁ is a molecular state, built mostly from the D^* K and Dₛ^* components. The D^* and Dₛ^* mesons are allowed to decay into two pseudoscalars, with one of them merging with the other pseudoscalar that forms the Dₒ₁ state, ultimately leading to the ^+ ^- Dₛ final state. This results in a triangle diagram mechanism where all theoretical ingredients are well-known, leading to a free parameter framework. We evaluate the mass distributions of particle pairs and find good agreement with the experimental distributions of a recent LHCb experiment, providing strong support to the molecular picture of the Dₒ₁ (2460) state. We also discuss the role played by the scalar mesons f₀ (500) and f₀ (980), at odds with the interpretation of the experimental analysis.
Roca et al. (Tue,) studied this question.