Yrast spectroscopy of N=82,83 isotopes Xe-136 and Xe-137 from Cm-248 fission

P J Daly, P Bhattacharyya, C T Zhang, Z W Grabowski, R Broda, B Fornal, I Ahmad, T Lauritsen, L R Morss, W Urban, W R Phillips, J L Durell, M J Leddy, A G Smith, B J Varley, N Schulz, E Lubkiewicz, M Bentaleb, J Blomqvist

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Prompt gamma-ray cascades in neutron-rich nuclei around doubly magic Sn-132 have been studied at Eurogam II using a Cm-248 fission source. Here we report results for the f our-valence-proton N = 82 nucleus Xe-136 and for its N = 83 neighbor Xe-137. For both nuclei, the yrast level spectra have been considerably extended, and empirical nucleon-nucleon interactions have been used to assign probable shell model configurations. The Xe-136 level energies are compared with those calculated using different sets of proton-proton interaction matrix elements, both diagonal and nondiagonal, obtained by fitting experimental data for other N = 82 isotones.
    Original languageEnglish
    JournalPhysical Review C
    Volume59
    Issue number6
    Publication statusPublished - 1999

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