Pronounced shape change induced by quasiparticle alignment

A. Algora, G. de Angelis, F. Brandolini, R. Wyss, A. Gadea, E. Farnea, W. Gelletly, S. Lunardi, D. Bazzacco, C. Fahlander, A. Aprahamian, F. Becker (+19 others)
2000 Physical Review C  
Mean lifetimes of high-spin states of 74 Kr have been determined using the Doppler-shift attenuation method. The high-spin states were studied using the 40 Ca( 40 Ca,␣2p) reaction at a beam energy of 160 MeV with the GASP ␥-ray spectrometer. The ground-state band and negative parity side band show the presence of three different configurations in terms of transitional quadrupole deformations. A dramatic shape change was found along the ground-state band after the S-band crossing. The deduced
more » ... drupole deformation changes are well reproduced by cranked Woods-Saxon Strutinsky calculations.
doi:10.1103/physrevc.61.031303 fatcat:iootxhv53jfdfnmnvqlc7c64sm