Is $$d^*(2380)$$ a compact hexaquark state?

Abstract The most fascinating dibaryon in the non-strange quark sector is $$d^*(2380)$$ d ∗ ( 2380 ) , which was reported by WASA-at-COSY Collaboration and confirmed A2@MAMI Collaboration. mass decay width are $$M\approx 2.37$$ M ≈ 2.37 GeV, $$\Gamma \approx 70$$ Γ 70 MeV quantum numbers $$IJ^P=03^+$$ I J P = 03 + . structure of still controversy. In present calculation, powerful method few-body system, Gaussian expansion (GEM) employed to explore framework constituent models without assuming presupposed structure. results show that radius around 0.8 fm, it a very compact object. Because structure, color singlet-singlet component has large overlap with octet-octet one, two colorless, overlapped $$\Delta $$ Δ s dominate state possible.