Kavatsyuk O. Structure of excited states in nuclei near 100Sn studied in beta decay

The thesis is dedicated to beta-decay studies of very proton reach tin isotopes, 101-103Sn, by means of high-resolution spectroscopy. A total of 31 beta-delayed gamma-rays (29 new) of the 103Sn 103In decay were observed and, on the basis of beta-gamma-gamma coincidences, the 103Sn decay scheme was established for the first time. For the 102Sn, gamma-gamma coincidence data were collected for the first time and allowed to extend the decay scheme. Based on the beta-delayed proton data the production cross-section of 101Sn in the 50Cr+58Ni fusion-evaporation reaction and the half-life of 101Sn were determined. For the first time beta-delayed gamma-rays of 101Sn were tentatively identified. Obtained experimental results are discussed in comparison with quasiparticle shell-model predictions using realistic and empirical residual interactions.