0(gs)+ -->2(1)+ transition strengths in 106Sn and 108Sn.
(2008) In Physical Review Letters 101(1).- Abstract
- The reduced transition probabilities, B(E2; 0(gs)+ -->2(1)+), have been measured in the radioactive isotopes (108,106)Sn using subbarrier Coulomb excitation at the REX-ISOLDE facility at CERN. Deexcitation gamma rays were detected by the highly segmented MINIBALL Ge-detector array. The results, B(E2;0(gs)+ -->2(1)+)=0.222(19)e2b2 for 108Sn and B(E2; 0(gs)+-->2(1)+)=0.195(39)e2b2 for 106Sn were determined relative to a stable 58Ni target. The resulting B(E2) values are approximately 30% larger than shell-model predictions and deviate from the generalized seniority model. This experimental result may point towards a weakening of the N=Z=50 shell closure.
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- author
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 101
- issue
- 1
- article number
- 012502
- publisher
- American Physical Society
- external identifiers
-
- wos:000257424700019
- pmid:18764107
- scopus:46949084221
- pmid:18764107
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.101.012502
- language
- English
- LU publication?
- yes
- id
- 1f14ad6f-cc43-4709-a3d5-46f10e4ff655 (old id 1243492)
- date added to LUP
- 2016-04-01 12:33:09
- date last changed
- 2022-03-13 19:27:29
@article{1f14ad6f-cc43-4709-a3d5-46f10e4ff655, abstract = {{The reduced transition probabilities, B(E2; 0(gs)+ -->2(1)+), have been measured in the radioactive isotopes (108,106)Sn using subbarrier Coulomb excitation at the REX-ISOLDE facility at CERN. Deexcitation gamma rays were detected by the highly segmented MINIBALL Ge-detector array. The results, B(E2;0(gs)+ -->2(1)+)=0.222(19)e2b2 for 108Sn and B(E2; 0(gs)+-->2(1)+)=0.195(39)e2b2 for 106Sn were determined relative to a stable 58Ni target. The resulting B(E2) values are approximately 30% larger than shell-model predictions and deviate from the generalized seniority model. This experimental result may point towards a weakening of the N=Z=50 shell closure.}}, author = {{Ekström, Andreas and Cederkäll, Joakim and Fahlander, Claes and Hjorth-Jensen, M and Ames, F and Butler, P A and Davinson, T and Eberth, J and Fincke, F and Görgen, A and Górska, M and Habs, D and Hurst, A M and Huyse, M and Ivanov, O and Iwanicki, J and Kester, O and Köster, U and Marsh, B A and Mierzejewski, J and Reiter, P and Scheit, H and Schwalm, D and Siem, S and Sletten, G and Stefanescu, I and Tveten, G M and Van de Walle, J and Van Duppen, P and Voulot, D and Warr, N and Weisshaar, D and Wenander, F and Zielińska, M}}, issn = {{1079-7114}}, language = {{eng}}, number = {{1}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{0(gs)+ -->2(1)+ transition strengths in 106Sn and 108Sn.}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.101.012502}}, doi = {{10.1103/PhysRevLett.101.012502}}, volume = {{101}}, year = {{2008}}, }