Three body calculation of the ΔΔ dibaryon candidate D(03)(2370).
The D(03) dibaryon is generated dynamically as a resonance pole in a πNΔ' three body model, where Δ' is a stable Δ baryon. Using separable interactions dominated by the Δ(1232) isobar for πN and by the D(12)(2150) isobar for NΔ', with D(12)(2150) the NΔ dibaryon deduced in and constrained by (1)D(2) pp scattering, the model reduces to an effective two body problem for ΔΔ' which is solved. The mass and width of D(03) are found close to those of the I(J(P))=0(3(+)) resonance peak observed by WASA-at-COSY in pion-production pn collisions at 2.37 GeV.