High-spin states in odd-odd 164Lu

X. H. Wang, C. H. Yu, D. M. Cullen, D. C. Bryan, M. Devlin, M. J. Fitch, A. Galindo-Uribarri, R. W. Gray, D. M. Herrick, R. W. Ibbotson, K. L. Kurz, S. Mullins, S. Pilotte, D. C. Radford, M. R. Satteson, M. W. Simon, D. Ward, C. Y. Wu, L. H. Yao

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Abstract

High-spin states in odd-odd 164Lu have been studied using 19F and 23Na induced fusion-evaporation reactions. Three strongly coupled rotational bands have been established and three decoupled bands were tentatively assigned to 164Lu. The band crossing frequencies, energy signature splittings, and relative transition probabilities were deduced from experimental data and compared with neighboring even-even and odd-A nuclei. An anomalously large band crossing frequency was observed in the excited band, and a pronounced signature inversion was observed in the yrast band of 164Lu. These anomalies may be associated with residual neutron-proton interactions.

Original languageEnglish
Pages (from-to)77-105
Number of pages29
JournalNuclear Physics A
Volume608
Issue number1
DOIs
StatePublished - Oct 7 1996

Funding

Research at the Nuclear Structure Research Laboratory of the University of Rochester is supported by the National Science Foundation. Oak Ridge National Laboratory is managed by Lockheed Martin Energy Research Corporation for the U.S. Department of Energy under contract number DE-AC05-96OR22464.

Keywords

  • Nd(Na, 5n), e = 110 MeV
  • Nuclear reactions Sm(F, 4n), E = 85 MeV

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