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Collective excitations in the transitional nuclei 163Re and 165Re.

Authors :
Davis-Merry, T. R.
Joss, D. T.
Page, R. D.
Simpson, J.
Paul, E. S.
Ali, F. A.
Bianco, L.
Carroll, R. J.
Cederwall, B.
Darby, I. G.
Drummond, M. C.
Eeckhaudt, S.
Ertürk, S.
Gömez-Hornillos, M. B.
Grahn, T.
Greenlees, P. T.
Hadinia, B.
Jakobsson, U.
Jones, P. M.
Julin, R.
Source :
Physical Review C: Nuclear Physics. Mar2015, Vol. 91 Issue 3, p1-8. 8p.
Publication Year :
2015

Abstract

Excited states in the neutron-deficient nuclei 75163Re88 and 75165Re90 were populated in the 106Cd(60Ni. p2nγ) and 92Mo(78Kr, 3p2nγ) fusion-evaporation reactions at bombarding energies of 270 and 380 MeV, respectively. γ rays were detected at the target position using the JUROGAM spectrometer while recoiling ions were separated in-flight by the RITU gas-filled recoil separator and implanted in the GREAT spectrometer. The energy level schemes for 163Re and 165Re were identified using recoil-decay correlation techniques. At low spin, the yrast bands of these isotopes consist of signature partner bands based on a single πh11/2 quasiproton configuration. The bands display large energy splitting consistent with the soft triaxial shape typical of transitional nuclei above N = 82. The configurations of the excited states are proposed within the framework of the cranked shell model. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
05562813
Volume :
91
Issue :
3
Database :
Academic Search Index
Journal :
Physical Review C: Nuclear Physics
Publication Type :
Academic Journal
Accession number :
102264407
Full Text :
https://doi.org/10.1103/PhysRevC.91.034319