Spectroscopy of the T=3/2 A=47 and A=45 mirror nuclei via one- and two-nucleon knockout reactions

Level schemes of the proton-rich nuclei, Mn-47 (Z = 25, N = 22) and Cr-45 (Z = 24, N = 21), have been established for the first time. The technique of mirrored one- and two-nucleon knockout reactions was applied to the secondary beams of V-48/Mn-48 and V-47/Cr-47 to populate states in Ti-47/Mn-47 and Sc-45/Cr-45, respectively. Mirror energy differences (MED) have been studied between the mirrored T = 3/2 states for both mirror pairs and interpreted using both a shell-model approach and a density-functional-theory approach using the no-core configuration-interaction method. MED in this mass region provide a stringent test of the model prescriptions since both integral p- and sd-shell orbitals are active and, in Cr-45, spherical and well-deformed structures coexist near the ground state. The inclusive and exclusive one-nucleon removal cross sections have been determined for the populated states in Ti-47/Mn-47 and compared with results from reaction-model calculations.