Abstract
The dibaryon with J = S = 3 and I = 0 has a chance to be “bound”, m ∗( d 03) < 2m Δ , in the quark model with QCD residual interaction. We calculate a peripheral reaction mechanism whereby an incoming relativistic deuteron is excited to this dibaryon resonance via the (scalar) mean field of the target nucleus (e.g. 16O). In the projectile system the target nucleus corresponds to an effective number of isoscalar (σ) mesons which produce the (ΔΔ) component via 2π intermediate states. At very high energies we calculate the diffraction excitation via pomeron exchange.
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