Nearly complete level scheme ofSn116below 4.3 MeV

The level scheme of ${}_{}{}^{116}{}_{}{}^{}\mathrm{Sn}$ has been studied by combining the results of ${}_{}{}^{115}{}_{}{}^{}\mathrm{Sn}$(n,γ${)}^{116}$Sn and ${}_{}{}^{116}{}_{}{}^{}\mathrm{Sn}$(n,n’γ${)}^{116}$Sn experiments. Both experiments were performed using isotopically enriched samples and Ge γ-ray detectors. Based on the thresholds of γ-ray excitation functions measured for the ${}_{}{}^{116}{}_{}{}^{}\mathrm{Sn}$(n,n’γ) reaction and the precise γ-ray energies from the capture reaction, 100 levels were observed below 4.3 MeV excitation energy. Approximately half of these were not known previously. Forty-eight of these levels have unique or tentative spin-parity assignments, and for ten more the spin has been restricted to a single value. The spin-parity for most other levels below 4.3 MeV excitation has been restricted to a few values. These spin-parity assignments and limitations were derived mainly from (n,n’γ) angular distribution measurements, together with additional information obtained from the cross section magnitudes in both experiments.