Asymmetry in the super-allowed β-transitions of the A=9 isobars
(2004) In Nuclear Physics A 738(1-4 SUPPL.). p.206-210- Abstract
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.
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- author
- publishing date
- 2004-06-28
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nuclear Physics A
- volume
- 738
- issue
- 1-4 SUPPL.
- pages
- 5 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:4444302903
- ISSN
- 0375-9474
- DOI
- 10.1016/j.nuclphysa.2004.04.074
- language
- English
- LU publication?
- no
- id
- bb234114-ce89-4fb1-8ff4-801a6b1a60ae
- date added to LUP
- 2016-12-20 14:15:22
- date last changed
- 2022-01-30 08:43:21
@article{bb234114-ce89-4fb1-8ff4-801a6b1a60ae, abstract = {{<p>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 <sup>9</sup>Be (11.8 MeV) arid <sup>9</sup>B (12.2 MeV) fed in the β-decay of <sup>9</sup>Li and <sup>9</sup>C 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.</p>}}, author = {{Borge, M. J G and Prezado, Y. and Bergmann, U. C. and Boutami, R. and Cederkäll, J. and Diget, C. Aa and Fraile, L. M. and Fynbo, H. O U and Jading, Y. and Jeppesen, H. and Jonson, B. and Martel, I. and Meister, M. and Nilsson, T. and Nyman, G. and Riisager, K. and Simon, H. and Tengblad, O. and Weissman, L. and Wenander, F. and Wilhelmsen, K.}}, issn = {{0375-9474}}, language = {{eng}}, month = {{06}}, number = {{1-4 SUPPL.}}, pages = {{206--210}}, publisher = {{Elsevier}}, series = {{Nuclear Physics A}}, title = {{Asymmetry in the super-allowed β-transitions of the A=9 isobars}}, url = {{http://dx.doi.org/10.1016/j.nuclphysa.2004.04.074}}, doi = {{10.1016/j.nuclphysa.2004.04.074}}, volume = {{738}}, year = {{2004}}, }