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High-spin isomeric structures in exotic odd-odd nuclei: Exploration of the proton drip line and beyond
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
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2007 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 76, no 3, 034313- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2007. Vol. 76, no 3, 034313- p.
Keyword [en]
cesium isotopes, decay
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-16987DOI: 10.1103/PhysRevC.76.034313ISI: 000249786600019ScopusID: 2-s2.0-34548845032OAI: diva2:335030
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2010-08-20Bibliographically approved

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