The ground-state rotational band of ${}_{}{}^{234}{}_{}{}^{}\mathrm{Th}$ is established up to $I^{\pi }$${=10\mathrm{}}^{+}$ (${12}^{+}$) by in-beam γ-ray spectroscopy. Heavy-ion transfer reactions are shown to be useful to investigate otherwise unaccessible neutron-rich actinide nuclides.

• Received 26 October 1988

DOI:https://doi.org/10.1103/PhysRevC.39.1145