Institution: | a Department of Nuclear Physics, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT 0200, Australia b Department of Physics, The Faculties, The Australian National University, Canberra, ACT 0200, Australia |
Abstract: | The average g factors of high-spin states in 180,182,184Pt were measured by the transient-field technique. In all three isotopes the quasicontinuum g factor at an angular momentum of 20 is g0.37. This contrasts with similar measurements on other nuclei that have 70Z80, where typical values of g0.22 have been attributed to the influence of quasineutron alignments. Evidently proton and neutron configurations are about equally important at high spin in the Pt isotopes near mid-shell. This inference is consistent with the discrete spectroscopy, including the contention, supported by gK−gR values, that h9/2 proton pairs align along with the i13/2 neutrons at rotational frequencies of ω≈0.3 MeV in 184Pt. Links between the quasicontinuum g factors and features in the discrete spectroscopy are explored by comparing and contrasting the behavior of 184Pt and 166Hf. |