Elsevier

Nuclear Physics A

Volume 527, 20–27 May 1991, Pages 405-410
Nuclear Physics A

Spin-isospin sesponse of nuclei in the Δ resonance region

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Abstract

The delta (Δ) excitations in nuclei induced by intermediate energy charge exchange reactions are analysed within the iobar-hole model. It is found that the Δ-hole correlations mediated by the energy-dependent π-exchange interaction of the spin longitudinal channel shifts the Δ-peak position downwards in energy by ∼ 30 MeV. The origin of this shift is explained in detail.

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