Alignment anomalies in the study of high spins in ⁷⁹Sr

The study of high-spin states in ⁷⁹Sr is reported. The ⁷⁹Sr nucleus was populated in the ⁵⁸Ni(²⁴Mg, 2pn)⁷⁹Sr reaction at 65-110 MeV and the inverse ²⁴Mg(⁵⁸Ni, 2pn)⁷⁹Sr reaction at 190 MeV bombarding energy. Using gamma - gamma and recoil- gamma - gamma coincidence techniques, the authors were able to extend the level scheme up to spins (37/2⁺) and (33/2^-) in the positive and negative parity bands respectively. These spins are high enough to study the alignment effects due to protons in this mass region.