Evolution of the πg9/2 direct × vh_(11/2) configuration in the neutron-rich ~(110,112)_(45)Rh and ~(114,116)_(47)Ag isotopes

摘要

The ~(110,112)Rh and ~(114,116)Ag nuclei have been produced as fission fragments in the fusion reaction ~(18)O + ~(208)Pb at 85 MeV. Their level schemes have been built from gamma-rays detected using the Euroball IV array. High-spin states of these neutron-rich nuclei have been identified for the first time. The yrast structures consist of rotational bands in which the odd proton occupies the πg9/2 sub-shell and the odd neutron the vh_(11/2) sub-shell. The evolution of the πg9/2 direct × vh_(11/2) band structure is analyzed as a function of the neutron number.