Probing Multi-Strange Dibaryon with Proton-Omega Correlation in High-energy Heavy Ion Collisions

Two-particle intensity correlation between the proton ($p$) and the Omega-baryon ($Ω$) in high-energy heavy ion collisions is studied to unravel the possible spin-2 $pΩ$ dibaryon recently suggested by lattice QCD simulations. The ratio of correlation functions between small and large collision systems, $C_{\rm SL}(Q)$, is proposed to be a new measure to extract the strong $pΩ$ interaction without much contamination from the Coulomb attraction. Relevance of this quantity to the experimental observables in heavy-ion collisions is also discussed.

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