Near-yrast structure of the {sup 149}La nucleus
Journal Article
·
· Physical Review. C, Nuclear Physics
- Faculty of Physics, University of Warsaw, ul. Hoza 69, PL-00-681 Warsaw (Poland)
- Soltan Institute for Nuclear Studies, PL-05-400 Swierk-Otwock (Poland)
- Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK (United Kingdom)
- Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Excited states in {sup 149}La, populated in the spontaneous fission of {sup 248}Cm, were studied with the EUROGAM2 array. A new {delta}I=2 band found in {sup 149}La is interpreted as the {alpha}=-1/2 branch of the {pi}3/2{sup -}[402] configuration. The bandhead has spin 7/2{sup -} because the 3/2{sup -} and 5/2{sup -} levels are pushed up by the Coriolis interaction. The 7/2{sup -} level is located not higher than 30 keV above the ground state and may form a long-lived isomer if spin and parity of the g.s. is 3/2{sup +}.
- OSTI ID:
- 21064385
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 76, Issue 3; Other Information: DOI: 10.1103/PhysRevC.76.037301; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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