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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
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmail
Liu, H. L.UNSPECIFIED
Xu, F. R.UNSPECIFIED
Xu, S. W.UNSPECIFIED
Wyss, R.UNSPECIFIED
Walker, P. M.p.walker@surrey.ac.uk
Date : 11 September 2007
Identification Number : 10.1103/PhysRevC.76.034313
Additional Information : Published in Physical Review C, 76, 034313 (2007). © 2007 The American Physical Society.
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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