Dibaryon coupling constants for interactions with photons, pions and baryons in the SU-4W groups

Various coupling constants are investigated for the positive parity dibaryons Dsub(IJ) (I is the isospin and J is the spin) classified by means of the 50-dimensional representation of the SU(4)sub(w)-symmetry group. Decomposition of the 50-plet over the representations of the group SU(2)sub(I)xSU(2)sub(s) is obtained. Matrix elements of the transitions γd→D10 and γd→D12 are related to the deuteron magnetic moment. The amplitudes of processes πd→D10, πd→D12 are calculated. The coupling constants d→ΔΔ, D10→NN, D10→ΔΔ, D12→NΔ, D03→ΔΔ are expressed in terms of the deuteron-nucleon coupling constant. For the resonance D12(2160) are obtained the estimate for the width GITA(D12→dπ) approximately 1/2GITA(Δ→Nπ)