Abstract
Excited states and decay properties of Pt have been investigated using the Mo fusion-evaporation reaction. The JUROGAM I -ray spectrometer and the GREAT spectrometer were used in conjunction with the gas-filled recoil separator RITU for the measurement of the radiation at the target and focal plane positions, respectively. Two new band structures, assigned to be based on the ground state in Pt, have been established and the known yrast band has been extended up to . Rotational properties of the excited states in Pt have been investigated within the cranked shell-model formalism. The low-frequency changes in the alignments of the positive- and negative-parity bands are interpreted as a sign of proton-pair excitations in the rotating core. Furthermore, the -decay measurements reveal a candidate for a fourth -decay branch in Pt, feeding a non-yrast state in Os.
6 More- Received 10 January 2014
DOI:https://doi.org/10.1103/PhysRevC.89.024316
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