High-sensitivity study of levels in 30Al following β decay of 30Mg
Abstract
γ -ray and fast-timing spectroscopy were used to study levels in 30Al populated following the β− decay of 30Mg. Five new transitions and three new levels were located in 30Al. A search was made to identify the third 1+
state expected at an excitation energy of ∼2.5 MeV. Two new levels were found, at 3163.9 and 3362.5 keV, that
are firm candidates for this state. Using the advanced time-delayed (ATD) βγγ (t) method we have measured the
lifetime of the 243.8-keV state to be T1/2 = 15(4) ps, which implies that the 243.8-keV transition is mainly of M1
character. Its fast B(M1; 2+ → 3+) value of 0.10(3) W.u. is in very good agreement with the USD shell-model
prediction of 0.090 W.u. The 1801.5-keV level is the only level observed in this study that could be a candidate
for the second excited 2+ state.
Main Authors
Format
Articles
Research article
Published
2016
Series
Subjects
Publication in research information system
Publisher
American Physical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201611304846Use this for linking
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/PhysRevC.94.054318
Language
English
Published in
Physical Review C
Citation
- Olaizola, B., Mach, H., Fraile, L. M., Benito, J., Borge, M. J. G., Boutami, R., Butler, P. A., Dlouhy, Z., Fynbo, H. O. U., Hoff, P., Hyldegaard, S., Jeppesen, H. B., Jokinen, A., Jollet, C., Korgul, A., Köster, U., Kröll, Th., Kurcewicz, W., Marechal, F., . . . Yordanov, D. T. (2016). High-sensitivity study of levels in 30Al following β decay of 30Mg. Physical Review C, 94(5), Article 054318. https://doi.org/10.1103/PhysRevC.94.054318
License
Copyright© the Authors, 2016. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License.