Three rotational bands in Kr74 were studied up to (in one case one transition short of) the maximum spin Imax of their respective single-particle configurations. Their lifetimes have been determined using the Doppler-shift attenuation method. The deduced transition quadrupole moments reveal a modest decrease, but far from a complete loss of collectivity at the maximum spin Imax. This feature, together with the results of mean field calculations, indicates that the observed bands do not terminate at I=Imax. © 2005 The American Physical Society.
|Journal||Physical Review Letters|
|Publication status||Published - 2 Dec 2005|