Abstract
The neutron-deficient isotope
32
64Ge
32 was produced in the reaction
12C(
54Fe, 2nγ)
64Ge at a beam energy of 165 MeV. The production cross section for
64Ge was measured to be 640 ± 70
μb, which represents only ∼0.1% of the total fusion cross section. The Daresbury recoil separator was operated in conjunction with a large γ-array to study recoil-γγ correlations and measure recoil-γ angular distributions. A level scheme for
64Ge was constructed containing 19 levels. The nucleus appears to have a structure consistent with a γ-soft shape. Shape changes induced by aligned
g
9
2
nucleons are discussed. An overview of octupole correlations in the
A ⋍ 60−80 mass region is given. Evidence for forbidden E1 transitions was found which is indicative of considerable isospin mixing.