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Capture reactions into borromean two-proton systems at rp-waiting points

AuthorsHove, D.; Garrido, Eduardo ; Jensen, A. S.; Fynbo, H. O. U.; Zinner, N. T.; Fedorov, D. V.
Issue Date2017
PublisherInstitute of Physics Publishing
CitationJournal of Physics: Conference Series 863: 012074 (2017)
AbstractWe investigate even-even two-proton borromean systems at prominent intermediate heavy waiting points for the rapid proton capture process. The most likely single-particle levels are used to calculate three-body energy and structure as a function of proton-core resonance energy. We establish a linear dependence between two- and three-body energies with the same slope, but the absolute value slightly dependent on partial wave structure. Using these relations we estimate low-lying excited states in the isotones following the critical waiting points. The capture rate for producing a borromean bound state is described based on a full threebody calculation for temperatures about 0.1 − 10 GK. In addition, a simple rate expression, depending only on a single resonance state, is found to comply with the three-body calculation for temperatures between 0.1 and 4 GK. The rate calculations are valid for both direct and sequential capture paths. As a result the relevant path of the radiative capture reactions can be determined.
Description4 pags., 3 figs. -- 11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics. -- Open Access funded by Creative Commons Atribution Licence 3.0
Publisher version (URL)http://doi.org/10.1088/1742-6596/863/1/012074
Identifiersdoi: 10.1088/1742-6596/863/1/012074
issn: 1742-6588
Appears in Collections:(CFMAC-IEM) Artículos
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