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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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

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nuclei
protons
neutrons
excitation
rays
parity
alignment
anomalies
valence
configurations

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

LaFosse, D. R., Fossan, D. B., Hughes, J. R., Liang, Y., Schnare, H., Vaska, 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

Particle-hole induced intruder bands in [Formula Presented]Sb and [Formula Presented]Sb. / LaFosse, D. R.; Fossan, D. B.; Hughes, J. R.; Liang, Y.; Schnare, H.; Vaska, P.; Waring, M. P.; Zhang, J. Y.

In: Physical Review C - Nuclear Physics, Vol. 56, No. 2, 01.01.1997, p. 760-771.

Research output: Contribution to journalArticle

LaFosse, DR, Fossan, DB, Hughes, JR, Liang, Y, Schnare, H, Vaska, P, Waring, MP & Zhang, JY 1997, 'Particle-hole induced intruder bands in [Formula Presented]Sb and [Formula Presented]Sb', Physical Review C - Nuclear Physics, vol. 56, no. 2, pp. 760-771. https://doi.org/10.1103/PhysRevC.56.760
LaFosse, D. R. ; Fossan, D. B. ; Hughes, J. R. ; Liang, Y. ; Schnare, H. ; Vaska, P. ; Waring, M. P. ; Zhang, J. Y. / Particle-hole induced intruder bands in [Formula Presented]Sb and [Formula Presented]Sb. In: Physical Review C - Nuclear Physics. 1997 ; Vol. 56, No. 2. pp. 760-771.
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