Search for Signature Inversion in the πi<sub>13/2</sub>⊗νi<sub>13/2</sub> Band in Odd-Odd <sup>178</sup>Ir
Zhang Yu-Hu; T. Hayakawa; M. Oshima; Y. Toh; J. Katakura; Y. Hatsukawa; M. Matsuda; N. Shinohara; T. Ishii; H. Kusakari; M. Sugawara; T. Komatsubara; K. Furuno
Журнал:
Chinese Physics Letters
Дата:
2001-10-01
Аннотация:
The search for the πi<sub>13/2</sub>⊗νi<sub>13/2</sub> band in <sup>178</sup>Ir has been conducted through the <sup>152</sup>Sm(<sup>31</sup>P,5nγ) <sup>178</sup>Ir reaction and the excitation functions, x-γ and γ-γ-t coincidence measurements. Five rotational bands have been newly identified. The low-spin signature inversion in the πi<sub>13/2</sub>⊗νi<sub>13/2</sub> band has been confirmed by the observations of linking transitions and signature crossing at I = 25.5 ℏ. The inversion phenomenon in πh<sub>11/2</sub>⊗νi<sub>13/2</sub>, πh<sub>9/2</sub>⊗νi<sub>13/2</sub> and πi<sub>13/2</sub>⊗νi<sub>13/2</sub> structures in <sup>178</sup>Ir provides a unique testing ground for different theoretical interpretations.
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