Search for signature inversion in the pi i(13/2) circle times nu i(13/2) band in odd-odd Ir-178

Authors
Zhang, YH Hayakawa, T Oshima, M Toh, Y Katakura, J Hatsukawa, Y Matsuda, M Shinohara, N Ishii, T Kusakari, H Sugawara, M Komatsubara, T Furuno, K
Citation
Yh. Zhang et al., Search for signature inversion in the pi i(13/2) circle times nu i(13/2) band in odd-odd Ir-178, CHIN PHYS L, 18(10), 2001, pp. 1323-1326
Citations number
15
Categorie Soggetti
Physics
Journal title
CHINESE PHYSICS LETTERS
ISSN journal
0256307X → ACNP
Volume
18
Issue
10
Year of publication
2001
Pages
1323 - 1326
Database
ISI
SICI code
0256-307X(200110)18:10<1323:SFSIIT>2.0.ZU;2-B
Abstract
The search for the pii(13/2) circle times nui(13/2) band in Ir-178 has been conducted through the Sm-152(P-31,5n gamma) Ir-178 reaction and the excita tion functions, x-gamma and gamma-gamma -t coincidence measurements. Five r otational bands have been newly identified. The low-spin signature inversio n in the pii(13/2) circle times nui(13/2) band has been confirmed by the ob servations of linking transitions and signature crossing at I = 25.5 h. The inversion phenomenon in pii(11/2) circle times nui(13/2), pih(9/2) circle times nui(13/2) and pii(13/2) circle times nui(13/2) structures in Ir-178 p rovides a unique testing ground for different theoretical interpretations.