Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-12-27
Phys.Rev.C83:021305,2011
Physics
Nuclear Physics
Nuclear Theory
5 pages, 2 figures, 1 table
Scientific paper
10.1103/PhysRevC.83.021305
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.
Hagen Gaute
Hjorth-Jensen Morten
Jensen Ø.
Vaagen Jan S.
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