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Report No.

Transition strengths in the neutron-rich $$^{73,74,75}$$Ni isotopes

Gottardo, A.*; de Angelis, G.*; Doornenbal, P.*; Coraggio, L.*; Gargano, A.*; Itaco, N.*; Orlandi, R.; 52 of others*

Reduced transition probabilities have been measured for the neutron-rich $$^{73,74,75}$$Ni nuclei with relativistic Coulomb excitation performed at the RIKEN Nishina Center. Excitation energies compare well with the result of large-scale shell-model calculations, while $$B(E2)$$ values are larger than predicted. This could indicate an increasing contribution of proton excitations across the $$Z=28$$ shell closure when approaching $$^{78}$$Ni.



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