Abstract
The reaction $^{74}\mathrm{Ge}(t, p)^{76}\mathrm{Ge}$ has been investigated with a 15 MeV triton beam. Twenty-six energy levels of $^{76}\mathrm{Ge}$ were identified up to about 4 MeV excitation, five of which were unreported previously. Angular distributions were measured and compared with distorted-wave Born-approximation calculations. The first and second excited 0+ states in $^{76}\mathrm{Ge}$ have been located at 1.911 and 2.901 MeV. Thirteen additional new spin and parity assignments have been made. The systematic structure of the low-lying 0+ states observed in the $\mathrm{Ge}(t, p)$ reactions on several isotopes support the idea of a shape transition previously proposed for these nuclei but for $N\ensuremath{\ge}46$ there is a rapid change toward a spherical shape.NUCLEAR REACTIONS $^{74}\mathrm{Ge}(t, p)$, ${E}_{t}=15.0$ MeV; measured $\ensuremath{\sigma}({E}_{p}, \ensuremath{\theta})^{76}\mathrm{Ge}$ deduced levels, $L$, $\ensuremath{\pi}$, $J$. DWBA analysis.
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