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Near-yrast structure of the La 149 nucleus

Near-yrast structure of the La 149 nucleus Excited states in La 149 , populated in the spontaneous fission of Cm 248 , were studied with the EUROGAM2 array. A new Δ I = 2 band found in La 149 is interpreted as the α = - 1 / 2 branch of the π 3 / 2 - 402 configuration. The bandhead has spin 7 / 2 - because the 3 / 2 - and 5 / 2 - levels are pushed up by the Coriolis interaction. The 7 / 2 - 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 + . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review C American Physical Society (APS)

Near-yrast structure of the La 149 nucleus

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Publisher
American Physical Society (APS)
Copyright
Copyright © 2007 The American Physical Society
ISSN
1089-490X
DOI
10.1103/PhysRevC.76.037301
Publisher site
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Abstract

Excited states in La 149 , populated in the spontaneous fission of Cm 248 , were studied with the EUROGAM2 array. A new Δ I = 2 band found in La 149 is interpreted as the α = - 1 / 2 branch of the π 3 / 2 - 402 configuration. The bandhead has spin 7 / 2 - because the 3 / 2 - and 5 / 2 - levels are pushed up by the Coriolis interaction. The 7 / 2 - 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 + .

Journal

Physical Review C – American Physical Society (APS)

Published: Sep 1, 2007

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