Nuclear isomers: structures and applications
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 -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.
Cite
@article{arxiv.nucl-th/0511035,
title = {Nuclear isomers: structures and applications},
author = {Yang Sun and Michael Wiescher and Ani Aprahamian and Jacob L. Fisker},
journal= {arXiv preprint arXiv:nucl-th/0511035},
year = {2009}
}
Comments
5 pages, 4 figures, from the CGS-12 Conference on Capture Gamma-Ray Spectroscopy and Related Topics, submitted to AIP proceedings