Abstract

High-spin states in 183Pt have been studied for the first time using the reactions 154Sm( 34S, 5n) and 170Yb( 16O,3n). Rotational bands built on the Nilsson configurations 1 2 −[521], 7 2 −[514] and 9 2 +[624] were observed up to spin values of 39 2 − 49 2 h ̵ . Quasiparticle alignments and band crossing frequencies were investigated in these bands. A large signature splitting was observed in the νi 13 2 - band structure . The experimental results were compared with total routhian surface calculations, in which the shape of the nucleus could be followed as a function of rotational frequency for different quasiparticle configurations.

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