Nuclear Structure Studies of the 83-Neutron SpeciesNd143

Thirty-eight states have been observed in ${\mathrm{Nd}}^{143}$ between the ground state and 3576 keV utilizing 10-MeV deuterons and the reaction ${\mathrm{Nd}}^{142}\mathrm{}(d,p)\mathrm{}{\mathrm{Nd}}^{143}$. The ground-state $Q$ value for this reaction was measured as 3902±15 keV. Absolute cross sections of the proton groups were measured. Angular distributions of most of the protons populating the lower-lying states were obtained and the corresponding $l$ values determined. Shell-model assignments of the states were attempted and the spectroscopic factors calculated. The centers of gravity of the fragmented shell-model states were then compared with those of other 83-neutron species and with theory.