Ge72from theGe70(t,p) reaction

The reaction ${}_{}{}^{70}{}_{}{}^{}\mathrm{Ge}$($t$,$p$)${}_{}{}^{72}{}_{}{}^{}\mathrm{Ge}$ has been investigated with a 15-MeV triton beam. 30 levels of ${}_{}{}^{72}{}_{}{}^{}\mathrm{Ge}$ were observed up to about 4-MeV excitation, four of which were unreported previously. Angular distributions were measured and compared with distorted-wave Born-approximation calculations. Several new $0^{+}$ states have been observed in ${}_{}{}^{72}{}_{}{}^{}\mathrm{Ge}$, one of which, at 1.709 MeV, is a new state and is the third $0^{+}$ level in ${}_{}{}^{72}{}_{}{}^{}\mathrm{Ge}$. Many additional spin and parity assignments have been made. The ${}_{}{}^{72}{}_{}{}^{}\mathrm{Ge}$ nucleus shows a pattern of $0^{+}$ states that is considerable different from that of other even Ge isotopes. But for higher spins and both parities, ${}_{}{}^{72}{}_{}{}^{}\mathrm{Ge}$ is very similar to other even Ge nuclei.