On the b-decay of 9C
(2001) In Nuclear Physics A 692(3-4). p.427-450- Abstract
- In β-decay experiments on 9C at CERN/ISOLDE the β-strength was determined to the ground state, the 12.2 MeV excited state and the Isobaric Analog State (IAS) at 14.655 MeV in 9B. A large β-strength asymmetry is deduced for the mirror transitions of 9C and 9Li to states around 12 MeV excitation energy. A satisfactory description of the three-body decay from a narrow energy region around the 12.2 MeV resonance is obtained within a sequential model involving the ground and first-excited states of 5Li and 8Be. From the study of angular correlations the spin of the 12.2 MeV state is determined as 5/2−. For the first time the population of the IAS is observed in β-decay and new information on the decay of this state is obtained. The advantages... (More)
- In β-decay experiments on 9C at CERN/ISOLDE the β-strength was determined to the ground state, the 12.2 MeV excited state and the Isobaric Analog State (IAS) at 14.655 MeV in 9B. A large β-strength asymmetry is deduced for the mirror transitions of 9C and 9Li to states around 12 MeV excitation energy. A satisfactory description of the three-body decay from a narrow energy region around the 12.2 MeV resonance is obtained within a sequential model involving the ground and first-excited states of 5Li and 8Be. From the study of angular correlations the spin of the 12.2 MeV state is determined as 5/2−. For the first time the population of the IAS is observed in β-decay and new information on the decay of this state is obtained. The advantages of a closely packed, highly segmented detector setup are demonstrated. (Less)
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- author
- Bergmann, U.C. ; Borge, M.J.G. ; Boutami, R. ; Fraile, L.M. ; Fynbo, H.O.U. ; Hornshoj, P. ; Jonson, Björn ; Markenroth Bloch, Karin LU ; Martel, I.I. and Mukha, I.
- organization
- publishing date
- 2001
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nuclear Physics A
- volume
- 692
- issue
- 3-4
- pages
- 427 - 450
- publisher
- Elsevier
- external identifiers
-
- scopus:0035944275
- DOI
- 10.1016/S0375-9474(01)00650-9
- language
- English
- LU publication?
- yes
- id
- 69f000c1-849d-434f-bec8-bfc6267b98de (old id 1122052)
- date added to LUP
- 2016-04-04 09:58:30
- date last changed
- 2022-01-29 19:32:07
@article{69f000c1-849d-434f-bec8-bfc6267b98de, abstract = {{In β-decay experiments on 9C at CERN/ISOLDE the β-strength was determined to the ground state, the 12.2 MeV excited state and the Isobaric Analog State (IAS) at 14.655 MeV in 9B. A large β-strength asymmetry is deduced for the mirror transitions of 9C and 9Li to states around 12 MeV excitation energy. A satisfactory description of the three-body decay from a narrow energy region around the 12.2 MeV resonance is obtained within a sequential model involving the ground and first-excited states of 5Li and 8Be. From the study of angular correlations the spin of the 12.2 MeV state is determined as 5/2−. For the first time the population of the IAS is observed in β-decay and new information on the decay of this state is obtained. The advantages of a closely packed, highly segmented detector setup are demonstrated.}}, author = {{Bergmann, U.C. and Borge, M.J.G. and Boutami, R. and Fraile, L.M. and Fynbo, H.O.U. and Hornshoj, P. and Jonson, Björn and Markenroth Bloch, Karin and Martel, I.I. and Mukha, I.}}, language = {{eng}}, number = {{3-4}}, pages = {{427--450}}, publisher = {{Elsevier}}, series = {{Nuclear Physics A}}, title = {{On the b-decay of 9C}}, url = {{http://dx.doi.org/10.1016/S0375-9474(01)00650-9}}, doi = {{10.1016/S0375-9474(01)00650-9}}, volume = {{692}}, year = {{2001}}, }