{gamma}-Ray Spectroscopy at the Limits: First Observation of Rotational Bands in {sup 255}Lr
Journal Article
·
· Physical Review Letters
- Department of Physics, University of Jyvaeskylae, FIN-40014 Jyvaeskylae (Finland)
- Gesellschaft fuer Schwerionenforschung (GSI), D-64291 Darmstadt (Germany)
The rotational band structure of {sup 255}Lr has been investigated using advanced in-beam {gamma}-ray spectroscopic techniques. To date, {sup 255}Lr is the heaviest nucleus to be studied in this manner. One rotational band has been unambiguously observed and strong evidence for a second rotational structure was found. The structures are tentatively assigned to be based on the 1/2{sup -}[521] and 7/2{sup -}[514] Nilsson states, consistent with assignments from recently obtained {alpha} decay data. The experimental rotational band dynamic moment of inertia is used to test self-consistent mean-field calculations using the Skyrme SLy4 interaction and a density-dependent pairing force.
- OSTI ID:
- 21319474
- Journal Information:
- Physical Review Letters, Vol. 102, Issue 21; Other Information: DOI: 10.1103/PhysRevLett.102.212501; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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