6533b85dfe1ef96bd12bdbfe

RESEARCH PRODUCT

Saturation of deformation atN=60 in the Sr isotopes

N. KaffrellH. GabelmannK. HeydeG. LhersonneauB. PfeifferKarl Kratz

subject

Nuclear physicsPhysicsNuclear and High Energy PhysicsIsotopeNuclear fusionNeutronDeformation (meteorology)Atomic physicsSaturation (chemistry)

description

From the halflife oft 1/2=3.91 (16) ns for the 21 + state in100Sr a deformation parameter ofβ=0.40(1) has been derived. Within the given uncertainties, this value is equal to the recently determinedβ-parameters for98Sr and99Sr, indicating that in the Sr isotopes saturation of deformation is reached immediately at its onset well before neutron midshell. This behaviour is reflected by the “twin” character of98Sr and100Sr with identical features of their unperturbed ground-state rotational bands. These observations are discussed in terms of strong two-nucleon interactions.

https://doi.org/10.1007/bf01294285