Quasiparticle alignments and alpha-decay fine structure of Pt-175



Peura, P, Scholey, C, Joss, DT ORCID: 0000-0001-5763-8767, Juutinen, S, Julin, R, Back, T, Cederwall, B, Greenlees, PT, Jakobsson, U, Jones, P
et al (show 16 more authors) (2014) Quasiparticle alignments and alpha-decay fine structure of Pt-175. Physical Review C, 89 (2).

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Abstract

Excited states and decay properties of 175 Pt have been investigated using the 92 Mo ( 86 Sr , 2 p n ) fusion-evaporation reaction. The JUROGAM I γ -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 I π = ( 7 / 2 − ) ground state in 175 Pt, have been established and the known yrast band has been extended up to I π = ( 49 / 2 + ) . Rotational properties of the excited states in 175 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 α -decay measurements reveal a candidate for a fourth α -decay branch in 175 Pt, feeding a non-yrast state in 171 Os.

Item Type: Article
Additional Information: Ah4fr Times Cited:1 Cited References Count:62## TULIP Type: Articles/Papers (Journal) ## official_url: <Go to ISI>://000336083300006
Uncontrolled Keywords: deficient platinum isotopes, coincidence data sets, nuclear-data sheets, total data readout, shape coexistence, neutron-deficient, high-spin, barrier penetrabilities, quadrupole-moments, even-even
Depositing User: Symplectic Admin
Date Deposited: 02 Aug 2016 15:46
Last Modified: 16 Apr 2021 11:24
DOI: 10.1103/Physrevc.89.024316
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3002722