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High-Spin Isomeric Structures in Exotic Odd-Odd Nuclei: Exploration of the Proton Drip Line and Beyond

Liu, H L, Xu, F R, Xu, S W, Wyss, R and Walker, P M (2007) High-Spin Isomeric Structures in Exotic Odd-Odd Nuclei: Exploration of the Proton Drip Line and Beyond Physical Review C, 76 (3). ISSN 0556-2813

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Abstract

We investigate the role of two-quasiparticle isomeric states along the proton drip line, using configuration-constrained potential-energy-surface calculations. In contrast to even-even nuclei, odd-odd nuclei can have coexisting low-lying two-quasiparticle states. The low excitation energy and high angular momentum can lead to long-lived isomers. Also, because of the hindrance by spin selection, the probabilities of beta and proton decays from high-spin isomers can be reduced significantly. The present calculations reproduce reasonably well the available data for observed isomers in such nuclei. Unobserved high-spin isomers are predicted, which could be useful for future experimental studies of exotic nuclei at and beyond the proton drip line.

Item Type: Article
Additional Information: Published in <i>Physical Review C,</i> Vol. 76, Iss. 3. Copyright 2007 American Physical Society. Click <a href=http://prc.aps.org/ >here</a> to access the journal's website.
Divisions: Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:06
Last Modified: 23 Sep 2013 18:26
URI: http://epubs.surrey.ac.uk/id/eprint/160

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