High Spin Structure in $^{123}$Xe

Abstract

Excited states of the nucleus $^{123}$Xe have been investigated with the fusion–evaporation-reaction $^{110}$Pd($^{18}$O,5n)$^{123}$Xe at 86 MeV beam energy, the compton-suppressed Nordball-multidetector-system at the Niels-Bohr-Institute in Risø, Denmark. The level scheme of $^{123}$Xe was extended up to a level of tentative $53/2^+\hbar$. Four excited bands of 3-quasiparticle-character were observed. Analyzing the directional correlation information, we could assign spin- and parity-values to all observed bands in $^{123}$Xe. The observed band structures fit well into systematics of the neighboring nuclei $^{125}$Xe and $^{127}$Xe