Joakim Cederkäll
Professor
Asymmetry in the super-allowed β-transitions of the A=9 isobars
Author
Summary, in English
We report here on the recent β-decay studies of the A = 9 isobar made at ISOLDE/CERN. Mirror beta transitions in the A=9 chain are compared and a large asymmetry factor is deduced for the transitions to high excitation energy in 9Be (11.8 MeV) arid 9B (12.2 MeV) fed in the β-decay of 9Li and 9C respectively. It is shown that the asymmetry is not due to experimental problems or differences in the mechanisms of breakup or in the spin of the states. Only differences in the partial decay branches of the breakup channels have been found. As no asymmetry is found in the gs to gs transition it must be due to the particular structure of these excited states.
Publishing year
2004-06-28
Language
English
Pages
206-210
Publication/Series
Nuclear Physics A
Volume
738
Issue
1-4 SUPPL.
Links
Document type
Journal article
Publisher
Elsevier
Topic
- Subatomic Physics
Status
Published
ISBN/ISSN/Other
- ISSN: 0375-9474