Particle-hole induced intruder bands in [Formula Presented]Sb and [Formula Presented]Sb

D. R. LaFosse, D. B. Fossan, J. R. Hughes, Y. Liang, H. Schnare, P. Vaska, M. P. Waring, J. Y. Zhang

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29 Scopus citations

Abstract

Collective structures have been investigated via γ-ray studies in 117,119Sb. Previously observed strongly coupled (πg9/2)-1 bands in both nuclei involving 1p-1h proton excitations across the Z=50 gap have been extended, and an alignment of h11/2 neutrons identified. New negative-parity strongly coupled bands based on this proton configuration have also been observed in both nuclei. Decoupled bands involving 2p-2h excitations across the gap have been observed in 119Sb, similar to those presented earlier for 117Sb. These bands are interpreted as due to the coupling of a low-K valence proton to the (πg7/2d5/2)2⊗(πg 9/2)-2 deformed state of the respective 50Sn core nuclei. Anomalies in the expected h11/2 neutron crossing of these bands are discussed.

Original languageEnglish (US)
Pages (from-to)760-771
Number of pages12
JournalPhysical Review C - Nuclear Physics
Volume56
Issue number2
DOIs
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    LaFosse, D. R., Fossan, D. B., Hughes, J. R., Liang, Y., Schnare, H., Vaska, P., Waring, M. P., & Zhang, J. Y. (1997). Particle-hole induced intruder bands in [Formula Presented]Sb and [Formula Presented]Sb. Physical Review C - Nuclear Physics, 56(2), 760-771. https://doi.org/10.1103/PhysRevC.56.760