The quadrupole moments of highly deformed bands in 134,135Nd and 131Ce have been determined using the Doppler-shift attenuation method. The obtained Q0 values show no clear dependence on the number of occupied νi13/2 intruder orbitals. Cranked shell model calculations indicate that the charge-quadrupole moments of the highly deformed bands decrease with increasing spin. The expected increase in deformation induced by the νi13/2 orbital in two bands of 134Nd is attenuated by a rotation-induced shrinking effect driving the nucleus towards smaller deformation.
Lifetime measurements of highly deformed bands in 134,135Nd and 131Ce
LUNARDI, SANTO;VENTURELLI, ROBERTO;
1998
Abstract
The quadrupole moments of highly deformed bands in 134,135Nd and 131Ce have been determined using the Doppler-shift attenuation method. The obtained Q0 values show no clear dependence on the number of occupied νi13/2 intruder orbitals. Cranked shell model calculations indicate that the charge-quadrupole moments of the highly deformed bands decrease with increasing spin. The expected increase in deformation induced by the νi13/2 orbital in two bands of 134Nd is attenuated by a rotation-induced shrinking effect driving the nucleus towards smaller deformation.
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