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

摘要

High-spin states have been studied in ~(72)Kr and ~(72)Br using the ~(40)Ca + ~(40)Ca and ~(36)Ar + ~(40)Ca and 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 S-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.