Strongly coupled enhanced-deformation band inPr131
A. Galindo-Uribarri,D. Ward,T. Drake,G. Hackman,V. P. Janzen,S. M. Mullins,S. Pilotte,D. C. Radford,I. Ragnarsson,N. C. Schmeing,J. C. Waddington;A. Galindo-Uribarri;D. Ward;T. Drake;G. Hackman;V. P. Janzen;S. M. Mullins;S. Pilotte;D. C. Radford;I. Ragnarsson;N. C. Schmeing;J. C. Waddington;
physical review c1994Vol. 50pp. R2655-R2659
169
waddington1994physicalstrongly
Abstract
An enhanced-deformation (ED) rotational band with unusual characteristics has been discovered in the odd-Z nucleus Pr131. The dynamical moment of inertia J(2)=(50–60)ħ2 MeV−1 and the extracted quadrupole moment Q0 = 5.5 ± 0.8 eb (β2=0.32±0.05) are comparable with other ED bands (sometimes called ‘‘superdeformed’’) in the mass A∼130 region. The two signature partners of the ED band are connected by dipole transitions which can be followed down to a K=9/2 bandhead. The nature of this band differs from all other ED bands in the A∼130 region since the i13/2 intruder neutron orbital is unoccupied.