|
|||||
|
|
Observation of superdeformed states in 88Mo |
|
| Authors: | T. Bäck B. Cederwall R. Wyss A. Johnson J. Cederkäll M. Devlin J. Elson D.R. LaFosse F. Lerma D.G. Sarantites R.M. Clark P. Fallon I.Y. Lee A.O. Macchiavelli R.W. Macleod |
| Affiliation: | (1) Department of Physics, Royal Institute of Technology, 104 05 Stockholm, Sweden, SE;(2) Chemistry Department, Washington University, St. Louis, MO 63130, USA, US;(3) Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, CA, USA 94720, US |
| Abstract: | High-spin states in 88Mo were studied using the Gammasphere germanium detector array in conjunction with the Microball CsI(Tl) charged-particle detector system. Three γ-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 β2≈ 0.6. 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. Received: 20 May 1999 / Revised version: 25 August 1999 |
| Keywords: | 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 |
| 本文献已被 SpringerLink 等数据库收录！ | |