High-spin spectroscopy of I119,121: Prolate and oblate shape coexistence

Yun Liang, D. B. Fossan, J. R. Hughes, D. R. Lafosse, T. Lauritsen, R. Ma, E. S. Paul, P. Vaska, M. P. Waring, N. Xu

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

High-spin states in the odd-proton I119,121 isotopes have been studied following heavy-ion fusion-evaporation reactions using boron and carbon beams. Both prolate (=0°) and oblate (=-60°) collective bands have been observed built on low-lying positive- and negative-parity proton states, namely, h11/2, g9/2, g7/2, and d5/2 orbitals. At the highest spins (39/2) the collective behavior of the h11/2 yrast band is seen to break down when noncollective oblate states become yrast, resulting in the observation of band termination. The terminating state involves the h11/2[g7/2]2[h11/2]2 configuration at =+60°.

Original languageEnglish (US)
Pages (from-to)1041-1057
Number of pages17
JournalPhysical Review C
Volume45
Issue number3
DOIs
StatePublished - 1992
Externally publishedYes

Fingerprint

spectroscopy
yrast state
protons
stopping
heavy ions
parity
boron
isotopes
fusion
breakdown
evaporation
orbitals
carbon
configurations

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Liang, Y., Fossan, D. B., Hughes, J. R., Lafosse, D. R., Lauritsen, T., Ma, R., ... Xu, N. (1992). High-spin spectroscopy of I119,121: Prolate and oblate shape coexistence. Physical Review C, 45(3), 1041-1057. https://doi.org/10.1103/PhysRevC.45.1041

High-spin spectroscopy of I119,121 : Prolate and oblate shape coexistence. / Liang, Yun; Fossan, D. B.; Hughes, J. R.; Lafosse, D. R.; Lauritsen, T.; Ma, R.; Paul, E. S.; Vaska, P.; Waring, M. P.; Xu, N.

In: Physical Review C, Vol. 45, No. 3, 1992, p. 1041-1057.

Research output: Contribution to journalArticle

Liang, Y, Fossan, DB, Hughes, JR, Lafosse, DR, Lauritsen, T, Ma, R, Paul, ES, Vaska, P, Waring, MP & Xu, N 1992, 'High-spin spectroscopy of I119,121: Prolate and oblate shape coexistence', Physical Review C, vol. 45, no. 3, pp. 1041-1057. https://doi.org/10.1103/PhysRevC.45.1041
Liang, Yun ; Fossan, D. B. ; Hughes, J. R. ; Lafosse, D. R. ; Lauritsen, T. ; Ma, R. ; Paul, E. S. ; Vaska, P. ; Waring, M. P. ; Xu, N. / High-spin spectroscopy of I119,121 : Prolate and oblate shape coexistence. In: Physical Review C. 1992 ; Vol. 45, No. 3. pp. 1041-1057.
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AU - Paul, E. S.

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