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Nuclear isomers: structures and applications

Yang Sun·Michael Wiescher·Ani Aprahamian·Jacob L. Fisker
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Abstract

Isomeric states in the nuclei along the rapid proton capture process path are studied by the projected shell model. Emphasis is given to two waiting point nuclei Se-68 and Kr-72 that are characterized by shape coexistence. Energy surface calculations indicate that the ground state of these nuclei corresponds to an oblate-deformed minimum, while the lowest state at the prolate-deformed minimum can be considered as a shape isomer. Due to occupation of the orbitals with large K-components, states built upon two-quasiparticle excitations at the oblate-deformed minimum may form high $K$-isomers. The impact of the isomer states on isotopic abundance in X-ray bursts is studied in a multi-mass-zone X-ray burst model by assuming an upper-lower limit approach.

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Yang Sun, Michael Wiescher, Ani Aprahamian, Jacob L. Fisker. 2005-11-14. Nuclear isomers: structures and applications. https://doi.org/10.1063/1.2187858

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