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, 47 Mn (Z = 25, N = 22) and 45 Cr (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 48 V/ 48 Mn and 47 V/ 47 Cr to populate states in 47 Ti/ 47 Mn and 45 Sc/ 45 Cr, 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 approach using the No-Core Configuration-Interaction (DFT-NCCI) method. MED in this mass region provide a stringent test of the model prescriptions since both fp-and sd-shell orbitals are active and, in 45 Cr, spherical and well-deformed structures co-exist near the ground-state. The inclusive and exclusive one-nucleon removal cross sections have been determined for the populated states in 47 Ti/ 47 Mn and compared with results from reaction-model calculations