We perform the flavour SU(3) analysis of the recently discovered Ω(2012) hyperon. We find that well known (four star) Δ(1700) resonance with quantum numbers of JP=3/2− is a good candidate for the decuplet partner of Ω(2012) if the branching for the three-body decays of the latter is not too large ≤70%. That implies that the quantum numbers of Ω(2012) are I(JP)=0(3/2−). The predictions for the properties of still missing Σ and Ξ decuplet members are made. We also discuss the implications of the K‾Ξ(1530) molecular picture of Ω(2012). In the molecular picture, Ω(2012) state can have quantum numbers of either I(JP)=0(3/2−) or I(JP)=1(3/2−). Crucial experimental tests to distinguish various pictures of Ω(2012) are suggested.
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Polyakov et al. (2019) studied this question.
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