Ab-Initio Coupled-Cluster Study of {sup 16}O

We report converged results for the ground and excited states and matter density of {sup 16}O using realistic two-body nucleon-nucleon interactions and coupled-cluster methods and algorithms developed in quantum chemistry. Most of the binding is obtained with the coupled-cluster singles and doubles...

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Veröffentlicht in:Physical review letters 2005-06, Vol.94 (21)
Hauptverfasser: Wloch, M., Gour, J.R., Kowalski, K., Piecuch, P., Dean, D.J., Hjorth-Jensen, M., Papenbrock, T., Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
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Sprache:eng
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Zusammenfassung:We report converged results for the ground and excited states and matter density of {sup 16}O using realistic two-body nucleon-nucleon interactions and coupled-cluster methods and algorithms developed in quantum chemistry. Most of the binding is obtained with the coupled-cluster singles and doubles approach. Additional binding due to three-body clusters (triples) is minimal. The coupled-cluster method with singles and doubles provides a good description of the matter density, charge radius, charge form factor, and excited states of a one-particle, one-hole nature, but it cannot describe the first-excited 0{sup +} state. Incorporation of triples has no effect on the latter finding.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.94.212501