Towards the decay properties of deuteron-like state dNΩd_{NΩ}

preprint2020arXivOpen access

Abstract

Recent lattice QCD calculations showed that a dNΩd_{NΩ} dibaryon state similar to the deuteron with small binding energy may exist. In this work we propose a hadronic molecular approach to study the dynamical properties of this exotic state. We use a phenomenological Lagrangian approach to describe the coupling of the dNΩd_{NΩ} state to its constituents and the decays into conventional hadrons, dNΩ→ΛΞd_{NΩ} \to ΛΞ and dNΩ→ΣΞd_{NΩ} \to ΣΞ. Predictions for the sum of the decay rates are in the range of a few hundred keV. In addition, we find that the dNΩ→ΛΞd_{NΩ} \to ΛΞ mode is dominant, preferably searched for in a future RHIC experiment.

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