Band structures in I-123
2006 (English)In: Journal of Physics G: Nuclear and Particle Physics, ISSN 0954-3899, E-ISSN 1361-6471, Vol. 32, no 3, 283-294 p.Article in journal (Refereed) Published
Excited states of I-123 were populated via the Cd-116(N-14, alpha 3n) reaction at 65 MeV. The resultant gamma-rays were detected using standard gamma-ray spectroscopic techniques with the NORDBALL detector array. Two previously known positive-parity Delta I = 2 sequences have been extended up to 31/2(+) and 41/2(+). In addition, a number of Delta I = 1 transitions linking the two Delta I = 2 sequences have been observed. It is suggested that both Delta I = 2 sequences are based on a common configuration. This Delta I = 1 band is proposed to be built predominantly on the 97/27/2(+) oblate configuration, based on the energylevel spectra, B(MI)/B(E2) ratios and the theoretical predictions from the particle-rotor model. The previously identified Delta I = 1 rotational band built on the prolate g(9/2)9/2(+) orbital has also been extended to higher spins. Another previously identified but weakly populated Delta I = 1 band is confirmed and is proposed to be built on the d(5/2)5/2' configuration with the ground state of I-123 as the bandhead.
Place, publisher, year, edition, pages
2006. Vol. 32, no 3, 283-294 p.
shape coexistence, nuclei, spectroscopy, i-117, excitations
IdentifiersURN: urn:nbn:se:kth:diva-15543DOI: 10.1088/0954-3899/32/3/004ISI: 000236230000006OAI: oai:DiVA.org:kth-15543DiVA: diva2:333584
QC 201005252010-08-052010-08-05Bibliographically approved