Excited states of the nucleus 123Xe have been investigated
with the fusion–evaporation-reaction
110Pd(18O,5n)123Xe at 86 MeV beam energy,
the compton-suppressed
Nordball-multidetector-system at the Niels-Bohr-Institute in
Risø, Denmark. The level scheme of 123Xe was extended up to
a level of tentative 53/2+ℏ. 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 123Xe. The observed band structures
fit well into systematics of the neighboring nuclei 125Xe
and 127Xe