High-spin states inGe70

The high-spin states of ${}_{}{}^{70}{}_{}{}^{}\mathrm{Ge}$ have been studied through observation of $\gamma$ rays from the reactions ${}_{}{}^{60}{}_{}{}^{}\mathrm{Ni}({}_{}{}^{12}{}_{}{}^{}\mathrm{C},2\mathrm{}p)$ and ${}_{}{}^{65}{}_{}{}^{}\mathrm{Cu}({}_{}{}^7{}_{}{}^{}\mathrm{Li},2n)$. Measurements were made of the $\gamma$-ray singles and $\gamma -\gamma$ coincidence spectra, of the $\gamma$-ray angular distributions, of the Doppler broadening for $\gamma$-ray lines, and of the $\gamma -\gamma$ angular correlations. Level energies, spins and parities, and $\gamma$-ray radiation admixtures were extracted. There is a strongly excited yrast band with the highest member observed being an $8^{+}$ state at 4433 keV. There is some evidence for a second even-parity band and for several odd-parity states with irregular level spacing.