Band structures in 123I
| Autor: | S. Y. Wang, J. Nyberg, Tsuneyasu Morikawa, Tetsuro Komatsubara, Yong-Liang Ma, N. Gjørup, P.O. Tjøm, G. Sletten, J. Mukai, T. Hayakawa, D. Jerrestam, Yong Liu, J. Gascon, Y. Iwata, Henrik Jeldtoft Jensen, J. M. Espino, G.B. Hagemann, Bo Cederwall, Kohei Furuno, Y. H. Zhang |
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| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Journal of Physics G: Nuclear and Particle Physics. 32:283-294 |
| ISSN: | 1361-6471 0954-3899 |
| DOI: | 10.1088/0954-3899/32/3/004 |
| Popis: | Excited states of 123I were populated via the 116Cd(14N, α3n) reaction at 65 MeV. The resultant γ-rays were detected using standard γ-ray spectroscopic techniques with the NORDBALL detector array. Two previously known positive-parity ΔI = 2 sequences have been extended up to 31/2+ and 41/2+. In addition, a number of ΔI = 1 transitions linking the two ΔI = 2 sequences have been observed. It is suggested that both ΔI = 2 sequences are based on a common configuration. This ΔI = 1 band is proposed to be built predominantly on the g7/2[404]7/2+ oblate configuration, based on the energy-level spectra, B(M1)/B(E2) ratios and the theoretical predictions from the particle-rotor model. The previously identified ΔI = 1 rotational band built on the prolate g9/2[404]9/2+ orbital has also been extended to higher spins. Another previously identified but weakly populated ΔI = 1 band is confirmed and is proposed to be built on the d5/2[413]5/2+ configuration with the ground state of 123I as the bandhead. |
| Databáze: | OpenAIRE |
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