Using γ-ray spectroscopy methods, excited states up to spin 14+ have been identified in the neutron-deficient nucleus 62136Sm74. Mean lifetime measurements give β=0.30 showing that the N=74=82-8 neutron number marks the limit of strong nuclear deformation, similarly to the symmetric N=90=82+8.
Nucleus Sm136 and the transition to a deformed regime at N=76–74
SORAMEL, FRANCESCA;LUNARDI, SANTO;MORANDO, MAURIZIO;SIGNORINI, COSIMO;MONTAGNOLI, GIOVANNA;
1988
Abstract
Using γ-ray spectroscopy methods, excited states up to spin 14+ have been identified in the neutron-deficient nucleus 62136Sm74. Mean lifetime measurements give β=0.30 showing that the N=74=82-8 neutron number marks the limit of strong nuclear deformation, similarly to the symmetric N=90=82+8.
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