Observation of superdeformed states in 88Mo
T. Bäck1 - B. Cederwall1 - R. Wyss1 - A. Johnson1 - J. Cederkäll1 - M. Devlin2 - J. Elson2 - D.R. LaFosse2 - F. Lerma2 - D.G. Sarantites2 - R.M. Clark3 - P. Fallon3 - I.Y. Lee3 - A.O. Macchiavelli3 - R.W. Macleod3
1 Department of Physics, Royal Institute of Technology, 104 05 Stockholm, Sweden
2 Chemistry Department, Washington University, St. Louis, MO 63130, USA
3 Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, CA, USA 94720
Received: 20 May 1999 / Revised version: 25 August 1999 Communicated by J. Äystö
Abstract
High-spin states in 88Mo were studied
using the
germanium detector array in
conjunction with the
CsI(Tl) charged-particle detector system. Three
-ray cascades with dynamic moments of inertia
showing similar characteristics to superdeformed rotational bands
observed in the neighbouring A=80 region have been identified and assigned
to the nucleus 88Mo. The quadrupole moment of the strongest
band, deduced by the Residual Doppler Shift Method, corresponds
to a quadrupole deformation of
.
This confirms the superdeformed nature of this band.
The experimental data are interpreted in the framework of total routhian
surface calculations. All three bands are assigned to two-quasi-particle
proton configurations at superdeformed shape.
PACS
21.10.Re Collective levels -
21.60.Cs Shell model -
23.20.Lv Gamma transitions and level energies -
27.50.+e 59 
A
89
Copyright Springer-Verlag
