Photoproton energy spectra and isospin effects in the decay of highly excited states of Ni isotopes

Abstract

The technique of the difference proton spectra is used to study the decay properties of highly excited states of the 58Ni and 60Ni isotopes in the energy region of the giant dipole resonance. The proton transition strengths to specific final states from particular initial states have been extracted. Experimental data are interpreted in terms of isospin splitting of the giant dipole resonance.