Ω(2012) through the looking glass of flavour SU(3)

We perform the flavour SU(3) analysis of the recently discovered Omega(2012) hyperon. We find that well known (four star) Delta(1700) resonance with quantum numbers of J(P) = 3/2(-) is a good candidate for the decuplet partner of Omega(2012) if the branching for the three-body decays of the latter is not too large <= 70%. That implies that the quantum numbers of Omega(2012) are I(J(P)) = 0(3/2(-)). The predictions for the properties of still missing Sigma and Xi decuplet members are made. We also discuss the implications of the (K) over bar Xi(1530) molecular picture of Omega(2012). In the molecular picture, Omega(2012) state can have quantum numbers of either I(J(P)) = 0(3/2(-)) or I(J(P)) = 1(3/2(-)). Crucial experimental tests to distinguish various pictures of Omega(2012) are suggested. (C) 2019 The Authors. Published by Elsevier B.V.