Cross sections and gamma cascades in ${}^{77}$Ge needed for background reduction in 0νββ experiments on ${}^{76}$Ge

The compound nucleus model is employed to calculate neutron capture on ${}^{76}$Ge and the consecutive γ decay. Total, inelastic and capture cross sections are compared to experiments in order to restrict model parameters. The respective γ cascades are analyzed for possible background suppression schemes in future 0νββ decay searches with germanium detectors. Neutron energies in the range from 0.2 keV to 5 MeV are investigated. The spin dependence of the γ cascades is proposed to be employed for determining the spin of thermal resonances.