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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 (034313). 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 Physical Review C, 76, 034313 (2007). © 2007 The American Physical Society.
Divisions: Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:09
Last Modified: 23 Sep 2013 18:28
URI: http://epubs.surrey.ac.uk/id/eprint/425

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