Abstract
The impact of the short-range NΔ interaction on the pion photoproduction processes off the deuteron in the Δ-resonance region is studied in the framework of a recently proposed dressed-bag model. A common dressing procedure for bare three- and six-quark states is used to describe both the pion decay widths of baryon resonances and the effective NN (or NΔ) interaction at short ranges. It is shown that the effect of short-range NΔ interaction for the forward-angle π0 photoproduction off the deuteron cannot be neglected. The prospects for further development of the model to describe the short-range NN (or NΔ) correlations in the lightest nuclei are discussed.
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