High-spin states beyond the proton drip-line: Quasiparticle alignments in Cs-113
Abstract
Excited states have been studied in the deformed proton emitter 113Cs. Gamma-ray transitions have been
unambiguously assigned to 113Cs by correlation with its characteristic proton decay, using the method
of recoil-decay tagging. Two previously identified rotational bands have been observed and extended to
tentative spins of 45/2 and 51/2 h¯, with excitation energies over 8 MeV above the lowest state. These
are the highest angular momenta and excitation energies observed to date in any nucleus beyond the
proton drip-line. Transitions in the bands have been rearranged compared to previous work. A study
of aligned angular momenta, in comparison to the predictions of Woods–Saxon cranking calculations, is
consistent with the most intense band being based on the π g7/2[422]3/2+ configuration, which would
contradict the earlier πh11/2 assignment, and with the second band being based on the πd5/2[420]1/2+
configuration. The data suggest that the band based upon the πh11/2 configuration is not observed.
Main Authors
Format
Articles
Research article
Published
2015
Series
Subjects
Publication in research information system
Publisher
Elsevier BV * North-Holland
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201508212724Käytä tätä linkitykseen.
Review status
Peer reviewed
ISSN
0370-2693
DOI
https://doi.org/10.1016/j.physletb.2014.11.045
Language
English
Published in
Physics Letters B
Citation
- Wady, P.T., Smith, J.F., Hadinia, B., Cullen, D.M., Freeman, S.J., Darby, I.G., Eeckhaudt, S., Grahn, T., Greenlees, P., Jones, P., Julin, R., Juutinen, S., Kettunen, H., Leino, M., Leppänen, A.-P., McGuirk, B.M., Nieminen, P., Nyman, M., Page, R.D., . . . Wadsworth, R. (2015). High-spin states beyond the proton drip-line: Quasiparticle alignments in Cs-113. Physics Letters B, 740, 243-249. https://doi.org/10.1016/j.physletb.2014.11.045
Copyright© 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.