Spin-parity assignments and extension of the 02+ band in 158Er
- Dinoko T S
- Orce J N
- Sharpey-Schafer J F
- Wiedeking M
- Bark R A
- Bvumbi S P
- Jones P
- Khaleel E A M A
- Lawrie E A
- Lawrie J J
- Majola S N T
- Masiteng P L
- Mohammed H
- Ntshangase S S
- Papka P
- Shirinda O
- Stankiewicz M
- Zhou E N
Publication date
December 2013
DOI Publisher
EDP Sciences ISSN
2100-014X Journal
EPJ Web of ConferencesAbstract
Low and medium spin collective structures in 158Er have been studied using the 150Sm(12C,4nγγ) fusion-evaporation reaction at a beam energy of Elab = 65 MeV. A band built on the 02+ excitation has been established and extended to Jπ = 18+ from the analysis of γ-γ coincidence relationships, intensity arguments and DCO ratios. The 02+ band in 158Er presents a similar trend to the 02+ bands in the lighter N = 90 isotones but lies about 125 keV higher. This systematic trend supports a similar configuration for the 02+ bands in the N = 90 isotones
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