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arXiv · 1012.5678

Closed-shell properties of $^{24}$O with {\em ab initio} coupled-cluster theory

Ø. Jensen·G. Hagen·M. Hjorth-Jensen·Jan S. Vaagen
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Abstract

We present an \emph{ab initio} calculation of spectroscopic factors for neutron and proton removal from $^{24}$O using the coupled-cluster method and a state-of-the-art chiral nucleon-nucleon interaction at next-to-next-to-next-to-leading order. In order to account for the coupling to the scattering continuum we use a Berggren single-particle basis that treats bound, resonant, and continuum states on an equal footing. We report neutron removal spectroscopic factors for the $^{23}$O states $J^{\pi} = 1/2^+$, $5/2^+$, $3/2^-$ and $1/2^-$, and proton removal spectroscopic factors for the $^{23}$N states $1/2^-$ and $3/2^-$. Our calculations support the accumulated experimental evidence that $^{24}$O is a closed-shell nucleus.

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Ø. Jensen, G. Hagen, M. Hjorth-Jensen, Jan S. Vaagen. 2010-12-27. Closed-shell properties of $^{24}$O with {\em ab initio} coupled-cluster theory. https://doi.org/10.1103/physrevc.83.021305

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