Signature splitting of electromagnetic transitions in 75Kr

The levels in 75Kr have been identified via the reaction 46Ti(32S,2pn)75Kr. Excitation functions were measured at beam energies of 85-150 MeV. From n-γγ and γγ coincident measurements at beam energy of 90 MeV, two bands of 75Kr have been established. Spins and parities have been assigned to the levels from angular distribution measurements and excitation functions. The spin sequence in both bands is I = K, K + 1, K + 2..., characteristic of strong-coupled Nilsson states, but the energies and electromagnetic properties exhibit systematic deviations from strong-coupled rotational behaviour. (author)