Acta Physica Polonica B

Vol. 36, No. 4, April 2005, page 1323


Oblate Collectivity in the Yrast Structure of 194Pt

G.A. Jones, Zs. Podolyak, N. Schunck, P.M. Walker, G. De Angelis, Y.H. Zhang, M. Axiotis, D. Bazzacco, P.G. Bizzeti, F. Brandolini, R. Broda, D. Bucurescu, E. Farnea, W. Gelletly, A. Gadea, M. Ionescu-Bujor, A. Iordachescu, Th. Kroell, S.D. Langdown, S. Lunardi, N. Marginean, T. Martinez, N.H. Medina, B. Quintana, P.H. Regan, B. Rubio, C.A. Ur, J.J. Valiente-Dobon, S.J. Williams

A deep inelastic reaction using a 460 MeV 82Se beam incident upon a thick 192Os target was performed at the Legnaro National Laboratory, Italy. The resulting \gamma -decays were measured using the GASP array. Results for 194Pt extend the known level scheme of the yrast structure from spin I=(12 \hbar) to (20 \hbar). The irregularities in the sequence of the new transition energies and total Routhian surface calculations show a breakdown in collectivity with an yrast oblate shape remaining to high spin.

PACS numbers: 23.20.Lv, 27.80.+w, 25.70.Hi



 
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