Excited states in ${}^{82}\mathrm{Ge}$, populated in the spontaneous fission of ${}^{248}\mathrm{Cm}$, have been studied by means of prompt γ spectroscopy, using the EUROGAM2 multidetector array. The known level at 2287 keV is assigned spin and parity $4^{+}$. Two new excited levels in ${}^{82}\mathrm{Ge}$, with spins and parities $5,6^{+}$, are proposed at 2930 and 3228 keV. At least one of the new levels is expected to be be due to neutron excitations across the $N=50$ shell gap. Its low energy, as compared to heavier $N=50$ isotones, supports the suggestion of other works that the $N=50$ shell closure is weakening when approaching the expected double shell closure at ${}^{78}\mathrm{Ni}$.

• Received 22 April 2007

DOI:https://doi.org/10.1103/PhysRevC.76.027302