Abstract
Excited states in the 99Rh nucleus were populated using the fusion-evaporation reaction 75As(28Si,2p2n) at and the de-excitations were investigated through in-beam γ-ray spectroscopic techniques using the INGA spectrometer consisting of 18 clover detectors. The observed band structures are discussed in the framework of tilted axis cranking shell-model calculations. Level structures at low energies are identified as resulting from the rotational bands based on the and configurations. The = 1 coupled bands are observed at higher excitation energies and have been interpreted as based on the , and configurations. Calculations based on cranked Nilsson–Strutinsky (CNS) formalism have been performed to interpret the favoured states with = (41/2−, 43/2−) and (51/2−, 53/2−) as maximal spin aligned states built on the valence space configuration combined with the fully-aligned configuration and the configuration with one anti-aligned proton, respectively.
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