Study of isospin structure of 1+spin states in 58Niand 58Cuby the comparison of 58Ni(p,p′)and 58Ni(3He,t)58Cureactions

High-resolution measurements of proton inelastic and charge-exchange (3He,t) reactions at 0° on 58Ni were performed. These reactions mainly cause isovector spin flip transitions of M1 states in 58Ni and GT states in 58Cu. The “level-by-level” comparison of analogous M1 and GT transition strengths allows the study of the isospin symmetry structure of highly-excited analog states in 58Ni and 58Cu and identification of isospin T (T=1 and 2) based on the different sensitivities of inelastic and charge exchange reactions.