Single-Particle States in $^{133}$Sn

% IS338 \\ \\ It is suggested to investigate the $\beta^- $-decay of $^{133}$In and $^{134}$In in order to determine the single-particle states in $^{133}$Sn, which are so far unknown and needed for the shell-model description of the region close to $^{132}$Sn. Large hyper-pure Ge-detectors will be used for the $\gamma$-ray spectroscopy. In the experiments with $^{134}$In, delayed neutrons in coincidence with $\gamma$-rays from excited states in $^{133}$Sn provide the opportunity for a very selective detection of the states in question.