Smooth band termination at high spin in 113I

K. Starosta, C. J. Chiara, D. B. Fossan, T. Koike, D. R. LaFosse, G. J. Lane, J. M. Sears, J. F. Smith, A. J. Boston, P. J. Nolan, E. S. Paul, A. T. Semple, M. Devlin, D. G. Sarantites, I. Y. Lee, A. O. Macchiavelli, I. Ragnarsson

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Abstract

The 113I nucleus has been studied using the 58Ni(58Ni,3p) reaction at 250 MeV with the Gammasphere/ Microball facility. Gamma-ray three-and four-fold data gated by charged particle combinations were analyzed. Multipolarities of the γ rays were assigned following the angular correlation measurements. The present study is focused on the high spin properties, where the structure is dominated by 2p-2h excitations across the Z=50 gap. Ten decoupled bands showing the features of smooth band termination were observed; three of those bands are linked to known low-spin states, which allows the identification of configurations by direct comparisons with configuration-dependent cranked Nilsson-Strutinsky calculations. The yrast band, which was linked along with the signature partner, was followed up to (101/2+) and ℏω∼1.3 MeV. The other linked band was a negative-parity band observed up to (95/2-). Tentative configurations for the unlinked bands are discussed. Comparisons with the theoretical results suggest that the band built on a configuration involving the neutron i13/2 intruder orbital originating from the N=6 harmonic oscillator subshell was observed in this experiment.

Original languageEnglish
Article number014304
Pages (from-to)143041-1430419
Number of pages1287379
JournalPhysical Review C - Nuclear Physics
Volume64
Issue number1
DOIs
Publication statusPublished - 2001 Jul
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Starosta, K., Chiara, C. J., Fossan, D. B., Koike, T., LaFosse, D. R., Lane, G. J., Sears, J. M., Smith, J. F., Boston, A. J., Nolan, P. J., Paul, E. S., Semple, A. T., Devlin, M., Sarantites, D. G., Lee, I. Y., Macchiavelli, A. O., & Ragnarsson, I. (2001). Smooth band termination at high spin in 113I. Physical Review C - Nuclear Physics, 64(1), 143041-1430419. [014304]. https://doi.org/10.1103/PhysRevC.64.014304