Isospin symmetry breaking in the T=1, A=70 triplet
Abstract
Excited states in the 70Kr and 70Br nuclei were populated via the 40Ca(32S, 2n) 70Kr and 40Ca(32S, pn) 70Br
fusion-evaporation reactions at the Accelerator Laboratory of the University of Jyväskylä. The 2+ −→ 0+ and
4+ −→ 2+ transitions in 70Kr have been found to be 881(1) keV and (tentatively) 1037(2) keV, respectively.
Several new γ -ray transitions were also identified in 70Br, and the T = 1 band has been tentatively extended up
to Jπ = 10+. The newly observed transitions in 70Kr and 70Br resolve discrepancies in the previously reported
results for these nuclei. The experimental Coulomb, triplet, and mirror energy differences are compared with the
results of two independent shell-model calculations. The comparisons aim to investigate the shape evolution and the role of the isospin breaking interactions in this mass region.
Main Authors
Format
Articles
Research article
Published
2024
Series
Subjects
Publication in research information system
Publisher
American Physical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202408295732Käytä tätä linkitykseen.
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/physrevc.110.024314
Language
English
Published in
Physical Review C
Citation
- Zimba, G. L., Ruotsalainen, P., De Gregorio, G., de Angelis, G., Sarén, J., Uusitalo, J., Auranen, K., Briscoe A., D., Ge, Z., Grahn, T., Greenlees, P. T., Illana, A., Jenkins, D. G., Joukainen, H., Julin, R., Jutila, H., Kankainen, A., Louko, J., Luoma, M., . . . Zadvornaya, A. (2024). Isospin symmetry breaking in the T=1, A=70 triplet. Physical Review C, 110(2), Article 024314. https://doi.org/10.1103/physrevc.110.024314
License
Funder(s)
European Commission
Funding program(s)
ERC Consolidator Grant
ERC Consolidator Grant
Additional information about funding
D.G.J. and R.W. acknowledge support from the UK STFC via Grants No. ST/P003885/1 and No. ST/V001035/1. A.Z. acknowledges funding from the European Union's Horizon 2020 research and innovation program under Grant Agreement No. 771036 (ERC CoG MAIDEN).
Copyright© 2024 American Physical Society