Author/Authors :
R.M. Lieder، نويسنده , , T. Rzaca-Urban، نويسنده , , H.J. Jensen، نويسنده , , W. Gast، نويسنده , , A. Georgiev، نويسنده , , H.M. Jager، نويسنده , , E. van der Meer، نويسنده , , Ch Droste، نويسنده , , T. Morek، نويسنده , , D. Bazzacco، نويسنده , , S. Lunardi، نويسنده , , R. Menegazzo، نويسنده , , C.M. Petrache ، نويسنده , , C. Rossi Alvarez، نويسنده , , C.A. Ur ، نويسنده , , G. De Angelis، نويسنده , , D.R. Napoli، نويسنده , , Ts Venkova، نويسنده , , R. Wyss، نويسنده ,
Abstract :
A superdeformed band has been discovered in 143Gd consisting of 15 transitions. It does not show the band crossing observed in the neighbouring heavier Gd isotopes and it is degenerate with the superdeformed band in 143Eu. In contrast to other degenerate bands at superdeformed shape, the configurations of the bands are quite different here. They result from the exchange of a ν64 with a π[404]9/2 configuration. In addition, a collective band has been observed which adopts a well-deformed triaxial shape at high spins according to calculations. The transition from highly to superdeformed shapes proceeds via triaxial shapes.
Keywords :
Measured E? , I? , ???–proton coin , ?-polarization , 143Gd deduced levels , J , Superdeformed bands , DCO ratios , ? , Compton-suppressed Ge-detector array , configurations , Cranked shell model calculations , Si particle-telescope array , NUCLEAR REACTIONS 97Mo(51V , E=238 MeV , p4n)
