https://doi.org/10.1140/epja/i2004-10065-1
Coexisting oblate and strongly triaxial structures in 191Pt
1
INRNE-BAS, 1784, Sofia, Bulgaria
2
CSNSM, IN2P3-CNRS, F-91405, Orsay, France
3
iThemba Laboratory for Accelerator Based Sciences, P.O. Box 722, Somerset West, South Africa
4
Faculty of Physics, University of Sofia, 1164, Sofia, Bulgaria
* e-mail: dorak@inrne.bas.bg
Received:
29
June
2004
Accepted:
2
August
2004
Published online:
23
November
2004
Excited states in 191Pt have been populated using the reaction 186W + 11B at 85MeV beam energy. Gamma-ray coincidences were measured using the EUROGAM-II spectrometer array. The level scheme has been extended considerably. Evidence for favoured structures of highly triaxial shape with γ ∼ -90° coexisting with oblate structures has been obtained by comparison with total Routhian surface and cranked shell model calculations. The presence of proton excitations in both positive- and negative-parity states has been confirmed.
PACS: 29.30.Kv X- and γ-ray spectroscopy – / 23.20.Lv γ transitions and level energies – / 21.60.Ev Collective models – / 27.80.+w 190 ⩽ A ⩽ 219 –
© Società Italiana di Fisica and Springer-Verlag, 2004
