Abstract

A unitary analysis for the 1D2-wave pp, 5S2-wave NΔ and 3P2-wave \pid scattering is applied to the NΔ scattering. The experimental phase parameters for the S-wave NΔ scattering are explained on the basis of the S-matrix pole of unstable bound-state type or broad dibaryon, M = 2144 MeV, I = 1, Jp = 2+.

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