High-spin structure of N ≃ Z nuclei around the A = 72 region

High-spin states have been studied in 72 Kr and 72 Br using the 40 Ca+ 40 Ca and 36 Ar + 40 Ca reactions at 164 and 145 MeV, respectively. The properties and configurations of the high-spin bands observed have been interpreted using unpaired cranked Nilsson-Strutinsky (CNS), and for 72 Kr, paired cranked relativistic Hartree-Bogoliubov (CRHB) calculations. In 72 Kr a new band has been identified that has the properties expected for the doubly aligned 5-band configuration. In 72 Br the previously known bands have been extended to higher spin. This has lead to a re-interpretation of the configurations.