Single-particle states in sup149Er and sup149Ho, and the effect of the Z=64 closure

K. S. Toth, Y. A. Ellis-Akovali, F. T. Avignone, R. S. Moore, D. M. Moltz, J. M. Nitschke, P. A. Wilmarth, P. K. Lemmertz, D. C. Sousa, A. L. Goodman

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


The decay of sup149Er was investigated by -ray spectroscopy. Based on these measurements the ssub1/2, dsub3/2, and hsub11/2 neutron states in sup149Er and the ssub1/2, dsub3/2, dsub5/2, and gsub7/2 proton states in sup149Ho were identified. A systematic examination of these proton states in N=82 isotones indicates a modest closure at Z=64, rather than a major one as suggested previously. Spherical Hartree-Fock-Bogolyubov calculations for even-Z N=81 and odd-Z N=82 nuclei are compared with experiment.

Original languageEnglish (US)
Pages (from-to)342-345
Number of pages4
JournalPhysical Review C
Issue number1
StatePublished - 1985
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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