High spin states in 121Te

Abstract

High spin states of 121Te, populated in the 114Cd (11B, p3n) reaction, have been studied through γ-ray spectroscopy. The level scheme has been established up to Jπ= 51/2−. Three-quasiparticle states, based on the πg 7/22 ⊗ vh11/2 and πg 7/2d5/2⊗ vh11/2 configurations, have been identified. A favoured 39/2− state is suggested to be the fully aligned [πg7/22]6 + ⊗ [vh11/23]27/2− yrast non-collective oblate configuration. This assignment is supported by Total Routhian Surface (TRS) calculations which also suggest a similar oblate assignment to the states at Jπ= 21/2− and 23/2−. A higher 47/2− state is also found and is suggested to be the fully aligned [πg7/22]6+ ⊗ [vh11/25]35/2− configuration.