Abstract
High-spin structures in the neutron-rich nuclei138Xe and139Xe have been investigated by observing prompt γ -rays from the spontaneous fission of248Cm with the Eurogam spectrometer. The partial level schemes were constructed on the basis of double-, triple- and quadruple-γ coincidences. The ground state band in138Xe has been extended up to 5 MeV excitation energy. The structure of the newly observed medium-spin states in139Xe is similar to the one of heavier N=85 isotones where vf 2/37 , vh9/2f 2/27 and vf 2/37 ⊗ 3− multiplets have been observed.
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Bentaleb, M., Lubkiewicz, E., Schulz, N. et al. High-spin states in the neutron rich fission fragments138Xe and139Xe. Z. Physik A - Hadrons and Nuclei 348, 245–246 (1994). https://doi.org/10.1007/BF01305877
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DOI: https://doi.org/10.1007/BF01305877